CH ORF (R4)
3.0.0-ballot - ballot Switzerland flag

This page is part of the CH ORF (R4) (v3.0.0-ballot: STU 3 Ballot 1) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Resource Profile: ChOrfComposition - Detailed Descriptions

Active as of 2024-05-17

Definitions for the ch-orf-composition resource profile.

Guidance on how to interpret the contents of this table can be found here

0. Composition
ShortCH ORF Composition
2. Composition.text
ShortNarrative text of the composition
Control1..?
Must Supporttrue
4. Composition.extension
SlicingThis element introduces a set of slices on Composition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 6. Composition.extension:dataEnterer
    Slice NamedataEnterer
    ShortThe person/organization who has typed/filled in the form content
    Control0..1
    TypeExtension(EPR Data Enterer) (Complex Extension)
    Must Supporttrue
    8. Composition.extension:urgentNoficationContactForThisDocument
    Slice NameurgentNoficationContactForThisDocument
    ShortAn information recipient to notify for urgent matters
    Control0..1
    TypeExtension(CH ORF Urgent Notification Contact For This Documet) (Extension Type: Reference)
    Must Supporttrue
    10. Composition.extension:urgentNoficationContactForTheResponseToThisDocument
    Slice NameurgentNoficationContactForTheResponseToThisDocument
    ShortAn information recipient to notify for urgent matters about the response
    Control0..1
    TypeExtension(CH ORF Urgent Notification Contact For The Response To This Document) (Extension Type: Reference)
    Must Supporttrue
    12. Composition.extension:receiver
    Slice Namereceiver
    ShortPerson/organization who receives the document
    Control0..1
    TypeExtension(CH ORF Receiver) (Extension Type: Reference)
    Must Supporttrue
    14. Composition.extension:copyReceiver
    Slice NamecopyReceiver
    ShortPerson/organization who receives the copy of this order (shall receive also all results therefrom)
    Control0..*
    TypeExtension(CH ORF Copy Receiver) (Extension Type: Reference)
    Must Supporttrue
    16. Composition.extension:precedentDocument
    Slice NameprecedentDocument
    ShortIdentifier of the document which precedes this document in a thread.
    Control0..1
    TypeExtension(CH ORF Precedent Document) (Extension Type: Identifier)
    Must Supporttrue
    18. Composition.extension:antecedentEpisodeOfCare
    Slice NameantecedentEpisodeOfCare
    ShortDocumentation of the antecedent episode of care e.g hospitalisation in case of care transfer between instituitons e.g. hospitals, rehab. clinics, retirement homes etc.
    Control0..1
    TypeExtension(CH ORF Episode of Care) (Extension Type: Reference)
    Must Supporttrue
    20. Composition.extension:initiator
    Slice Nameinitiator
    ShortProfile to specify who intiated this order; in particulars for spitex and transfer to retirement home etc.
    Control0..1
    TypeExtension(CH ORF Initiator) (Complex Extension)
    Must Supporttrue
    22. Composition.extension:patientConsent
    Slice NamepatientConsent
    ShortTo specify if the patient gave an informed consent to this order; in particulars for spitex and transfer to retirement home etc.
    Control0..1
    TypeExtension(CH ORF Patient Consent) (Extension Type: Reference)
    Must Supporttrue
    24. Composition.status
    Must Supporttrue
    26. Composition.type
    ShortPrecise type of clinical document
    BindingThe codes SHOULD be taken from DocumentEntry.typeCode
    (preferred to http://fhir.ch/ig/ch-term/ValueSet/DocumentEntry.typeCode)
    Must Supporttrue
    28. Composition.category
    ShortHigh-level kind of a clinical document at a macro level
    Control1..1
    BindingThe codes SHOULD be taken from DocumentEntry.classCode
    (preferred to http://fhir.ch/ig/ch-term/ValueSet/DocumentEntry.classCode)
    Must Supporttrue
    30. Composition.subject
    ShortPatient as the principle target of a particular form content
    Control1..?
    Must Supporttrue
    32. Composition.author
    ShortThe person/organization responsible for the form content
    Control0..1
    TypeReference(CH Core PractitionerRole)
    Must Supporttrue
    34. Composition.title
    ShortMeaningful title
    Must Supporttrue
    36. Composition.section
    Control1..?
    Must Supporttrue
    SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • pattern @ code
    • 38. Composition.section:orderReferral
      Slice NameorderReferral
      ShortContains the data that supports the order and referral by form.
      Control1..1
      Must Supporttrue
      40. Composition.section:orderReferral.title
      ShortOrder-Referral
      Control1..?
      Must Supporttrue
      42. Composition.section:orderReferral.code
      Control1..?
      Must Supporttrue
      Pattern Value{
        "coding" : [{
          "system" : "http://loinc.org",
          "code" : "93037-0"
        }]
      }
      44. Composition.section:orderReferral.text
      Must Supporttrue
      46. Composition.section:orderReferral.entry
      Control1..?
      Must Supporttrue
      SlicingThis element introduces a set of slices on Composition.section.entry. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • profile @ resolve()
      • 48. Composition.section:orderReferral.entry:Questionnaire
        Slice NameQuestionnaire
        ShortQuestionnaire
        Control0..1
        TypeReference(CH ORF Questionnaire)
        Must Supporttrue
        50. Composition.section:orderReferral.entry:Questionnaire.reference
        Control1..?
        Must Supporttrue
        52. Composition.section:orderReferral.entry:QuestionnaireResponse
        Slice NameQuestionnaireResponse
        ShortQuestionnaireResponse
        Control0..1
        TypeReference(CH ORF QuestionnaireResponse)
        Must Supporttrue
        54. Composition.section:orderReferral.entry:QuestionnaireResponse.reference
        Control1..?
        Must Supporttrue
        56. Composition.section:orderReferral.entry:ServiceRequest
        Slice NameServiceRequest
        ShortServiceRequest
        Control1..*
        TypeReference(CH ORF ServiceRequest)
        Must Supporttrue
        58. Composition.section:orderReferral.entry:ServiceRequest.reference
        Control1..?
        Must Supporttrue
        60. Composition.section:orderReferral.entry:DocumentReference
        Slice NameDocumentReference
        ShortDocumentReference
        Control0..*
        TypeReference(CH ORF DocumentReference)
        Must Supporttrue
        62. Composition.section:orderReferral.entry:DocumentReference.reference
        Control1..?
        Must Supporttrue
        64. Composition.section:orderReferral.section
        Control0..0
        66. Composition.section:originalRepresentation
        Slice NameoriginalRepresentation
        ShortContains the original representation as a PDF of the current document.
        Control0..1
        Must Supporttrue
        68. Composition.section:originalRepresentation.title
        ShortOriginal representation
        Control1..?
        Must Supporttrue
        70. Composition.section:originalRepresentation.code
        Control1..?
        Must Supporttrue
        Pattern Value{
          "coding" : [{
            "system" : "http://loinc.org",
            "code" : "55108-5"
          }]
        }
        72. Composition.section:originalRepresentation.text
        ShortRepresentation of the original view
        Control1..?
        Must Supporttrue
        74. Composition.section:originalRepresentation.entry
        ShortAccording to the EPR ordonnance the PDF has to be in PDF/A-1 or PDF/A-2 format.
        Control1..1
        TypeReference(Binary)
        Must Supporttrue
        76. Composition.section:originalRepresentation.section
        Control0..0

        Guidance on how to interpret the contents of this table can be found here

        0. Composition
        Definition

        A set of healthcare-related information that is assembled together into a single logical package that provides a single coherent statement of meaning, establishes its own context and that has clinical attestation with regard to who is making the statement. A Composition defines the structure and narrative content necessary for a document. However, a Composition alone does not constitute a document. Rather, the Composition must be the first entry in a Bundle where Bundle.type=document, and any other resources referenced from Composition must be included as subsequent entries in the Bundle (for example Patient, Practitioner, Encounter, etc.).

        ShortCH ORF CompositionA set of resources composed into a single coherent clinical statement with clinical attestation
        Comments

        While the focus of this specification is on patient-specific clinical statements, this resource can also apply to other healthcare-related statements such as study protocol designs, healthcare invoices and other activities that are not necessarily patient-specific or clinical.

        Control0..*
        Is Modifierfalse
        Summaryfalse
        Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
        dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
        dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
        dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
        dom-6: A resource should have narrative for robust management (text.`div`.exists())
        2. Composition.implicitRules
        Definition

        A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

        ShortA set of rules under which this content was created
        Comments

        Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

        Control0..1
        Typeuri
        Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        4. Composition.text
        Definition

        A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

        ShortNarrative text of the compositionText summary of the resource, for human interpretation
        Comments

        Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

        Control10..1
        TypeNarrative
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Alternate Namesnarrative, html, xhtml, display
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        6. Composition.extension
        Definition

        An Extension


        May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortExtensionAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on Composition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 8. Composition.extension:dataEnterer
          Slice NamedataEnterer
          Definition

          Extension to define the information about the person and organization that entered data and the time of the data input

          ShortThe person/organization who has typed/filled in the form content
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(EPR Data Enterer) (Complex Extension)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          10. Composition.extension:urgentNoficationContactForThisDocument
          Slice NameurgentNoficationContactForThisDocument
          Definition

          An information recipient to notify for urgent matters (e.g. in a radiology service, the radiologist has to be called by phone right away at the time the doucment is received).

          ShortAn information recipient to notify for urgent matters
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Urgent Notification Contact For This Documet) (Extension Type: Reference)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          12. Composition.extension:urgentNoficationContactForTheResponseToThisDocument
          Slice NameurgentNoficationContactForTheResponseToThisDocument
          Definition

          An information recipient to notify for urgent matters about the response. (e.g. in a clinical setting, the referring doctor has to be called by phone right away at the time the images and reports arrive. The Urgent Notification Contact for the Response can be specified already in the request. At the time the response is written, this element shall be populated to the Urgent Notification Contact element in the response.)

          ShortAn information recipient to notify for urgent matters about the response
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Urgent Notification Contact For The Response To This Document) (Extension Type: Reference)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          14. Composition.extension:receiver
          Slice Namereceiver
          Definition

          Person/organization who receives the document

          ShortPerson/organization who receives the document
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Receiver) (Extension Type: Reference)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          16. Composition.extension:copyReceiver
          Slice NamecopyReceiver
          Definition

          Receiver of the copy of this order and the results therefrom

          ShortPerson/organization who receives the copy of this order (shall receive also all results therefrom)
          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Copy Receiver) (Extension Type: Reference)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          18. Composition.extension:precedentDocument
          Slice NameprecedentDocument
          Definition

          Identifier of the document which precedes this document in a thread.

          ShortIdentifier of the document which precedes this document in a thread.
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Precedent Document) (Extension Type: Identifier)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          20. Composition.extension:antecedentEpisodeOfCare
          Slice NameantecedentEpisodeOfCare
          Definition

          Documentation of the antecedent episode of care e.g hospitalisation in case of care transfer between instituitons e.g. hospitals, rehab. clinics, retirement homes etc.

          ShortDocumentation of the antecedent episode of care e.g hospitalisation in case of care transfer between instituitons e.g. hospitals, rehab. clinics, retirement homes etc.
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Episode of Care) (Extension Type: Reference)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          22. Composition.extension:initiator
          Slice Nameinitiator
          Definition

          Extension to define person/organization who initated this order (may or may not receive a copy)

          ShortProfile to specify who intiated this order; in particulars for spitex and transfer to retirement home etc.
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Initiator) (Complex Extension)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          24. Composition.extension:patientConsent
          Slice NamepatientConsent
          Definition

          Patient Consent to this Order

          ShortTo specify if the patient gave an informed consent to this order; in particulars for spitex and transfer to retirement home etc.
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(CH ORF Patient Consent) (Extension Type: Reference)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          26. Composition.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
          Summaryfalse
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          28. Composition.status
          Definition

          The workflow/clinical status of this composition. The status is a marker for the clinical standing of the document.

          Shortpreliminary | final | amended | entered-in-error
          Comments

          If a composition is marked as withdrawn, the compositions/documents in the series, or data from the composition or document series, should never be displayed to a user without being clearly marked as untrustworthy. The flag "entered-in-error" is why this element is labeled as a modifier of other elements.

          Some reporting work flows require that the original narrative of a final document never be altered; instead, only new narrative can be added. The composition resource has no explicit status for explicitly noting whether this business rule is in effect. This would be handled by an extension if required.

          Control1..1
          BindingThe codes SHALL be taken from CompositionStatushttp://hl7.org/fhir/ValueSet/composition-status|4.0.1
          (required to http://hl7.org/fhir/ValueSet/composition-status|4.0.1)

          The workflow/clinical status of the composition.

          Typecode
          Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Requirements

          Need to be able to mark interim, amended, or withdrawn compositions or documents.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. Composition.type
          Definition

          Specifies the particular kind of composition (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the composition.

          ShortPrecise type of clinical documentKind of composition (LOINC if possible)
          Comments

          For Composition type, LOINC is ubiquitous and strongly endorsed by HL7. Most implementation guides will require a specific LOINC code, or use LOINC as an extensible binding.

          Control1..1
          BindingThe codes SHOULD be taken from DocumentEntry.typeCodehttp://hl7.org/fhir/ValueSet/doc-typecodes
          (preferred to http://fhir.ch/ig/ch-term/ValueSet/DocumentEntry.typeCode)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Key metadata element describing the composition, used in searching/filtering.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          32. Composition.category
          Definition

          A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

          ShortHigh-level kind of a clinical document at a macro levelCategorization of Composition
          Comments

          This is a metadata field from XDS/MHD.

          Control10..1*
          BindingThe codes SHOULD be taken from For example codes, see DocumentEntry.classCodehttp://hl7.org/fhir/ValueSet/document-classcodes
          (preferred to http://fhir.ch/ig/ch-term/ValueSet/DocumentEntry.classCode)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          34. Composition.subject
          Definition

          Who or what the composition is about. The composition can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of livestock, or a set of patients that share a common exposure).

          ShortPatient as the principle target of a particular form contentWho and/or what the composition is about
          Comments

          For clinical documents, this is usually the patient.

          Control10..1
          TypeReference(CH Core Patient, Resource)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Essential metadata for searching for the composition. Identifies who and/or what the composition/document is about.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          36. Composition.subject.reference
          Definition

          A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

          ShortLiteral reference, Relative, internal or absolute URL
          Comments

          Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

          Control10..1
          This element is affected by the following invariants: ref-1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          38. Composition.date
          Definition

          The composition editing time, when the composition was last logically changed by the author.

          ShortComposition editing time
          Comments

          The Last Modified Date on the composition may be after the date of the document was attested without being changed.

          Control1..1
          TypedateTime
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.


          dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. Composition.author
          Definition

          Identifies who is responsible for the information in the composition, not necessarily who typed it in.

          ShortThe person/organization responsible for the form contentWho and/or what authored the composition
          Control1..1*
          TypeReference(CH Core PractitionerRole, Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Identifies who is responsible for the content.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          42. Composition.author.reference
          Definition

          A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

          ShortLiteral reference, Relative, internal or absolute URL
          Comments

          Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

          Control10..1
          This element is affected by the following invariants: ref-1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          44. Composition.title
          Definition

          Official human-readable label for the composition.

          ShortMeaningful titleHuman Readable name/title
          Comments

          For many compositions, the title is the same as the text or a display name of Composition.type (e.g. a "consultation" or "progress note"). Note that CDA does not make title mandatory, but there are no known cases where it is useful for title to be omitted, so it is mandatory here. Feedback on this requirement is welcome during the trial use period.

          Control1..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          46. Composition.section
          Definition

          The root of the sections that make up the composition.

          ShortComposition is broken into sections
          Control10..*
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
          cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
          cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
          SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • pattern @ code
          • 48. Composition.section.modifierExtension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

            ShortExtensions that cannot be ignored even if unrecognized
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
            Summarytrue
            Requirements

            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

            Alternate Namesextensions, user content, modifiers
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            50. Composition.section:orderReferral
            Slice NameorderReferral
            Definition

            The root of the sections that make up the composition.

            ShortContains the data that supports the order and referral by form.Composition is broken into sections
            Control10..1*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
            cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
            cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
            52. Composition.section:orderReferral.modifierExtension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

            ShortExtensions that cannot be ignored even if unrecognized
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
            Summarytrue
            Requirements

            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

            Alternate Namesextensions, user content, modifiers
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            54. Composition.section:orderReferral.title
            Definition

            The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

            ShortOrder-ReferralLabel for section (e.g. for ToC)
            Comments

            The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

            Control10..1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summaryfalse
            Requirements

            Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

            Alternate Namesheader, label, caption
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            56. Composition.section:orderReferral.code
            Definition

            A code identifying the kind of content contained within the section. This must be consistent with the section title.

            ShortClassification of section (recommended)
            Comments

            The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

            If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

            Control10..1
            BindingFor example codes, see DocumentSectionCodeshttp://hl7.org/fhir/ValueSet/doc-section-codes
            (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

            Classification of a section of a composition/document.

            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Requirements

            Provides computable standardized labels to topics within the document.

            Pattern Value{
              "coding" : [{
                "system" : "http://loinc.org",
                "code" : "93037-0"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            58. Composition.section:orderReferral.text
            Definition

            A human-readable narrative that contains the attested content of the section, used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative.

            ShortText summary of the section, for human interpretation
            Comments

            Document profiles may define what content should be represented in the narrative to ensure clinical safety.

            Control0..1
            This element is affected by the following invariants: cmp-1
            TypeNarrative
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            60. Composition.section:orderReferral.entry
            Definition

            A reference to the actual resource from which the narrative in the section is derived.

            ShortA reference to data that supports this section
            Comments

            If there are no entries in the list, an emptyReason SHOULD be provided.

            Control10..*
            This element is affected by the following invariants: cmp-2
            TypeReference(Resource)
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            SlicingThis element introduces a set of slices on Composition.section.entry. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • profile @ resolve()
            • 62. Composition.section:orderReferral.entry:Questionnaire
              Slice NameQuestionnaire
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortQuestionnaireA reference to data that supports this section
              Comments

              If there are no entries in the list, an emptyReason SHOULD be provided.

              Control0..1*
              This element is affected by the following invariants: cmp-2
              TypeReference(CH ORF Questionnaire, Resource)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              64. Composition.section:orderReferral.entry:Questionnaire.reference
              Definition

              A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

              ShortLiteral reference, Relative, internal or absolute URL
              Comments

              Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

              Control10..1
              This element is affected by the following invariants: ref-1
              Typestring
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              66. Composition.section:orderReferral.entry:QuestionnaireResponse
              Slice NameQuestionnaireResponse
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortQuestionnaireResponseA reference to data that supports this section
              Comments

              If there are no entries in the list, an emptyReason SHOULD be provided.

              Control0..1*
              This element is affected by the following invariants: cmp-2
              TypeReference(CH ORF QuestionnaireResponse, Resource)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              68. Composition.section:orderReferral.entry:QuestionnaireResponse.reference
              Definition

              A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

              ShortLiteral reference, Relative, internal or absolute URL
              Comments

              Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

              Control10..1
              This element is affected by the following invariants: ref-1
              Typestring
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              70. Composition.section:orderReferral.entry:ServiceRequest
              Slice NameServiceRequest
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortServiceRequestA reference to data that supports this section
              Comments

              If there are no entries in the list, an emptyReason SHOULD be provided.

              Control10..*
              This element is affected by the following invariants: cmp-2
              TypeReference(CH ORF ServiceRequest, Resource)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              72. Composition.section:orderReferral.entry:ServiceRequest.reference
              Definition

              A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

              ShortLiteral reference, Relative, internal or absolute URL
              Comments

              Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

              Control10..1
              This element is affected by the following invariants: ref-1
              Typestring
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              74. Composition.section:orderReferral.entry:DocumentReference
              Slice NameDocumentReference
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortDocumentReferenceA reference to data that supports this section
              Comments

              If there are no entries in the list, an emptyReason SHOULD be provided.

              Control0..*
              This element is affected by the following invariants: cmp-2
              TypeReference(CH ORF DocumentReference, Resource)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              76. Composition.section:orderReferral.entry:DocumentReference.reference
              Definition

              A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

              ShortLiteral reference, Relative, internal or absolute URL
              Comments

              Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

              Control10..1
              This element is affected by the following invariants: ref-1
              Typestring
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              78. Composition.section:orderReferral.section
              Definition

              A nested sub-section within this section.

              ShortNested Section
              Comments

              Nested sections are primarily used to help human readers navigate to particular portions of the document.

              Control0..0*
              This element is affected by the following invariants: cmp-1
              TypeSee ttp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              80. Composition.section:originalRepresentation
              Slice NameoriginalRepresentation
              Definition

              The root of the sections that make up the composition.

              ShortContains the original representation as a PDF of the current document.Composition is broken into sections
              Control0..1*
              TypeBackboneElement
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
              cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
              ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
              cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
              82. Composition.section:originalRepresentation.modifierExtension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

              ShortExtensions that cannot be ignored even if unrecognized
              Comments

              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

              Control0..*
              TypeExtension
              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
              Summarytrue
              Requirements

              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

              Alternate Namesextensions, user content, modifiers
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              84. Composition.section:originalRepresentation.title
              Definition

              The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

              ShortOriginal representationLabel for section (e.g. for ToC)
              Comments

              The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

              Control10..1
              Typestring
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              Summaryfalse
              Requirements

              Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

              Alternate Namesheader, label, caption
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              86. Composition.section:originalRepresentation.code
              Definition

              A code identifying the kind of content contained within the section. This must be consistent with the section title.

              ShortClassification of section (recommended)
              Comments

              The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

              If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

              Control10..1
              BindingFor example codes, see DocumentSectionCodeshttp://hl7.org/fhir/ValueSet/doc-section-codes
              (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

              Classification of a section of a composition/document.

              TypeCodeableConcept
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Requirements

              Provides computable standardized labels to topics within the document.

              Pattern Value{
                "coding" : [{
                  "system" : "http://loinc.org",
                  "code" : "55108-5"
                }]
              }
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              88. Composition.section:originalRepresentation.text
              Definition

              A human-readable narrative that contains the attested content of the section, used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative.

              ShortRepresentation of the original viewText summary of the section, for human interpretation
              Comments

              Document profiles may define what content should be represented in the narrative to ensure clinical safety.

              Control10..1
              This element is affected by the following invariants: cmp-1
              TypeNarrative
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              90. Composition.section:originalRepresentation.entry
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortAccording to the EPR ordonnance the PDF has to be in PDF/A-1 or PDF/A-2 format.A reference to data that supports this section
              Comments

              If there are no entries in the list, an emptyReason SHOULD be provided.

              Control10..1*
              This element is affected by the following invariants: cmp-2
              TypeReference(Binary, Resource)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              92. Composition.section:originalRepresentation.section
              Definition

              A nested sub-section within this section.

              ShortNested Section
              Comments

              Nested sections are primarily used to help human readers navigate to particular portions of the document.

              Control0..0*
              This element is affected by the following invariants: cmp-1
              TypeSee ttp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

              Guidance on how to interpret the contents of this table can be found here

              0. Composition
              Definition

              A set of healthcare-related information that is assembled together into a single logical package that provides a single coherent statement of meaning, establishes its own context and that has clinical attestation with regard to who is making the statement. A Composition defines the structure and narrative content necessary for a document. However, a Composition alone does not constitute a document. Rather, the Composition must be the first entry in a Bundle where Bundle.type=document, and any other resources referenced from Composition must be included as subsequent entries in the Bundle (for example Patient, Practitioner, Encounter, etc.).

              ShortCH ORF Composition
              Comments

              While the focus of this specification is on patient-specific clinical statements, this resource can also apply to other healthcare-related statements such as study protocol designs, healthcare invoices and other activities that are not necessarily patient-specific or clinical.

              Control0..*
              Is Modifierfalse
              Summaryfalse
              Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
              dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
              dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
              dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
              dom-6: A resource should have narrative for robust management (text.`div`.exists())
              2. Composition.id
              Definition

              The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

              ShortLogical id of this artifact
              Comments

              The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

              Control0..1
              Typeid
              Is Modifierfalse
              Summarytrue
              4. Composition.meta
              Definition

              The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

              ShortMetadata about the resource
              Control0..1
              TypeMeta
              Is Modifierfalse
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              6. Composition.implicitRules
              Definition

              A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

              ShortA set of rules under which this content was created
              Comments

              Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

              Control0..1
              Typeuri
              Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              8. Composition.language
              Definition

              The base language in which the resource is written.

              ShortLanguage of the resource content
              Comments

              Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

              Control0..1
              BindingThe codes SHOULD be taken from CommonLanguages
              (preferred to http://hl7.org/fhir/ValueSet/languages)

              A human language.

              Additional BindingsPurpose
              AllLanguagesMax Binding
              Typecode
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              10. Composition.text
              Definition

              A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

              ShortNarrative text of the composition
              Comments

              Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

              Control1..1
              TypeNarrative
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Alternate Namesnarrative, html, xhtml, display
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              12. Composition.contained
              Definition

              These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

              ShortContained, inline Resources
              Comments

              This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

              Control0..*
              TypeResource
              Is Modifierfalse
              Summaryfalse
              Alternate Namesinline resources, anonymous resources, contained resources
              14. Composition.extension
              Definition

              An Extension

              ShortExtension
              Control0..*
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              SlicingThis element introduces a set of slices on Composition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 16. Composition.extension:dataEnterer
                Slice NamedataEnterer
                Definition

                Extension to define the information about the person and organization that entered data and the time of the data input

                ShortThe person/organization who has typed/filled in the form content
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(EPR Data Enterer) (Complex Extension)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                18. Composition.extension:urgentNoficationContactForThisDocument
                Slice NameurgentNoficationContactForThisDocument
                Definition

                An information recipient to notify for urgent matters (e.g. in a radiology service, the radiologist has to be called by phone right away at the time the doucment is received).

                ShortAn information recipient to notify for urgent matters
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Urgent Notification Contact For This Documet) (Extension Type: Reference)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                20. Composition.extension:urgentNoficationContactForTheResponseToThisDocument
                Slice NameurgentNoficationContactForTheResponseToThisDocument
                Definition

                An information recipient to notify for urgent matters about the response. (e.g. in a clinical setting, the referring doctor has to be called by phone right away at the time the images and reports arrive. The Urgent Notification Contact for the Response can be specified already in the request. At the time the response is written, this element shall be populated to the Urgent Notification Contact element in the response.)

                ShortAn information recipient to notify for urgent matters about the response
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Urgent Notification Contact For The Response To This Document) (Extension Type: Reference)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                22. Composition.extension:receiver
                Slice Namereceiver
                Definition

                Person/organization who receives the document

                ShortPerson/organization who receives the document
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Receiver) (Extension Type: Reference)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                24. Composition.extension:copyReceiver
                Slice NamecopyReceiver
                Definition

                Receiver of the copy of this order and the results therefrom

                ShortPerson/organization who receives the copy of this order (shall receive also all results therefrom)
                Control0..*
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Copy Receiver) (Extension Type: Reference)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                26. Composition.extension:precedentDocument
                Slice NameprecedentDocument
                Definition

                Identifier of the document which precedes this document in a thread.

                ShortIdentifier of the document which precedes this document in a thread.
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Precedent Document) (Extension Type: Identifier)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                28. Composition.extension:antecedentEpisodeOfCare
                Slice NameantecedentEpisodeOfCare
                Definition

                Documentation of the antecedent episode of care e.g hospitalisation in case of care transfer between instituitons e.g. hospitals, rehab. clinics, retirement homes etc.

                ShortDocumentation of the antecedent episode of care e.g hospitalisation in case of care transfer between instituitons e.g. hospitals, rehab. clinics, retirement homes etc.
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Episode of Care) (Extension Type: Reference)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                30. Composition.extension:initiator
                Slice Nameinitiator
                Definition

                Extension to define person/organization who initated this order (may or may not receive a copy)

                ShortProfile to specify who intiated this order; in particulars for spitex and transfer to retirement home etc.
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Initiator) (Complex Extension)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                32. Composition.extension:patientConsent
                Slice NamepatientConsent
                Definition

                Patient Consent to this Order

                ShortTo specify if the patient gave an informed consent to this order; in particulars for spitex and transfer to retirement home etc.
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(CH ORF Patient Consent) (Extension Type: Reference)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                34. Composition.modifierExtension
                Definition

                May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                ShortExtensions that cannot be ignored
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                Summaryfalse
                Requirements

                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                Alternate Namesextensions, user content
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                36. Composition.identifier
                Definition

                A version-independent identifier for the Composition. This identifier stays constant as the composition is changed over time.

                ShortVersion-independent identifier for the Composition
                Comments

                Similar to ClinicalDocument/setId in CDA. See discussion in resource definition for how these relate.

                NoteThis is a business identifier, not a resource identifier (see discussion)
                Control0..1
                TypeIdentifier
                Is Modifierfalse
                Summarytrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                38. Composition.status
                Definition

                The workflow/clinical status of this composition. The status is a marker for the clinical standing of the document.

                Shortpreliminary | final | amended | entered-in-error
                Comments

                If a composition is marked as withdrawn, the compositions/documents in the series, or data from the composition or document series, should never be displayed to a user without being clearly marked as untrustworthy. The flag "entered-in-error" is why this element is labeled as a modifier of other elements.

                Some reporting work flows require that the original narrative of a final document never be altered; instead, only new narrative can be added. The composition resource has no explicit status for explicitly noting whether this business rule is in effect. This would be handled by an extension if required.

                Control1..1
                BindingThe codes SHALL be taken from CompositionStatus
                (required to http://hl7.org/fhir/ValueSet/composition-status|4.0.1)

                The workflow/clinical status of the composition.

                Typecode
                Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                Summarytrue
                Requirements

                Need to be able to mark interim, amended, or withdrawn compositions or documents.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                40. Composition.type
                Definition

                Specifies the particular kind of composition (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the composition.

                ShortPrecise type of clinical document
                Comments

                For Composition type, LOINC is ubiquitous and strongly endorsed by HL7. Most implementation guides will require a specific LOINC code, or use LOINC as an extensible binding.

                Control1..1
                BindingThe codes SHOULD be taken from DocumentEntry.typeCode
                (preferred to http://fhir.ch/ig/ch-term/ValueSet/DocumentEntry.typeCode)
                TypeCodeableConcept
                Is Modifierfalse
                Must Supporttrue
                Summarytrue
                Requirements

                Key metadata element describing the composition, used in searching/filtering.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                42. Composition.category
                Definition

                A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

                ShortHigh-level kind of a clinical document at a macro level
                Comments

                This is a metadata field from XDS/MHD.

                Control1..1
                BindingThe codes SHOULD be taken from DocumentEntry.classCode
                (preferred to http://fhir.ch/ig/ch-term/ValueSet/DocumentEntry.classCode)
                TypeCodeableConcept
                Is Modifierfalse
                Must Supporttrue
                Summarytrue
                Requirements

                Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                44. Composition.subject
                Definition

                Who or what the composition is about. The composition can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of livestock, or a set of patients that share a common exposure).

                ShortPatient as the principle target of a particular form content
                Comments

                For clinical documents, this is usually the patient.

                Control1..1
                TypeReference(CH Core Patient)
                Is Modifierfalse
                Must Supporttrue
                Summarytrue
                Requirements

                Essential metadata for searching for the composition. Identifies who and/or what the composition/document is about.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                46. Composition.subject.id
                Definition

                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                ShortUnique id for inter-element referencing
                Control0..1
                Typestring
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                48. Composition.subject.extension
                Definition

                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                ShortAdditional content defined by implementations
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifierfalse
                Summaryfalse
                Alternate Namesextensions, user content
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                SlicingThis element introduces a set of slices on Composition.subject.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 50. Composition.subject.reference
                  Definition

                  A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                  ShortLiteral reference, Relative, internal or absolute URL
                  Comments

                  Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                  Control1..1
                  This element is affected by the following invariants: ref-1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  52. Composition.subject.type
                  Definition

                  The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                  The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                  ShortType the reference refers to (e.g. "Patient")
                  Comments

                  This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                  Control0..1
                  BindingUnless not suitable, these codes SHALL be taken from ResourceType
                  (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                  Aa resource (or, for logical models, the URI of the logical model).

                  Typeuri
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  54. Composition.subject.identifier
                  Definition

                  An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                  ShortLogical reference, when literal reference is not known
                  Comments

                  When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                  When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                  Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                  Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                  NoteThis is a business identifier, not a resource identifier (see discussion)
                  Control0..1
                  TypeIdentifier
                  Is Modifierfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  56. Composition.subject.display
                  Definition

                  Plain text narrative that identifies the resource in addition to the resource reference.

                  ShortText alternative for the resource
                  Comments

                  This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                  Control0..1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  58. Composition.encounter
                  Definition

                  Describes the clinical encounter or type of care this documentation is associated with.

                  ShortContext of the Composition
                  Control0..1
                  TypeReference(CH Core Encounter)
                  Is Modifierfalse
                  Summarytrue
                  Requirements

                  Provides context for the composition and supports searching.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  60. Composition.date
                  Definition

                  The composition editing time, when the composition was last logically changed by the author.

                  ShortComposition editing time
                  Comments

                  The Last Modified Date on the composition may be after the date of the document was attested without being changed.

                  Control1..1
                  TypedateTime
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Requirements

                  dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  62. Composition.author
                  Definition

                  Identifies who is responsible for the information in the composition, not necessarily who typed it in.

                  ShortThe person/organization responsible for the form content
                  Control1..1
                  TypeReference(CH Core PractitionerRole)
                  Is Modifierfalse
                  Must Supporttrue
                  Summarytrue
                  Requirements

                  Identifies who is responsible for the content.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  64. Composition.author.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  66. Composition.author.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  SlicingThis element introduces a set of slices on Composition.author.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 68. Composition.author.reference
                    Definition

                    A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                    ShortLiteral reference, Relative, internal or absolute URL
                    Comments

                    Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                    Control1..1
                    This element is affected by the following invariants: ref-1
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    70. Composition.author.type
                    Definition

                    The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                    The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                    ShortType the reference refers to (e.g. "Patient")
                    Comments

                    This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                    Control0..1
                    BindingUnless not suitable, these codes SHALL be taken from ResourceType
                    (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                    Aa resource (or, for logical models, the URI of the logical model).

                    Typeuri
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    72. Composition.author.identifier
                    Definition

                    An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                    ShortLogical reference, when literal reference is not known
                    Comments

                    When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                    When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                    Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                    Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                    NoteThis is a business identifier, not a resource identifier (see discussion)
                    Control0..1
                    TypeIdentifier
                    Is Modifierfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    74. Composition.author.display
                    Definition

                    Plain text narrative that identifies the resource in addition to the resource reference.

                    ShortText alternative for the resource
                    Comments

                    This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                    Control0..1
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    76. Composition.title
                    Definition

                    Official human-readable label for the composition.

                    ShortMeaningful title
                    Comments

                    For many compositions, the title is the same as the text or a display name of Composition.type (e.g. a "consultation" or "progress note"). Note that CDA does not make title mandatory, but there are no known cases where it is useful for title to be omitted, so it is mandatory here. Feedback on this requirement is welcome during the trial use period.

                    Control1..1
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supporttrue
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    78. Composition.confidentiality
                    Definition

                    The code specifying the level of confidentiality of the Composition.

                    ShortAs defined by affinity domain
                    Comments

                    The exact use of this element, and enforcement and issues related to highly sensitive documents are out of scope for the base specification, and delegated to implementation profiles (see security section). This element is labeled as a modifier because highly confidential documents must not be treated as if they are not.

                    Control0..1
                    BindingThe codes SHALL be taken from v3.ConfidentialityClassification (2014-03-26)
                    (required to http://terminology.hl7.org/ValueSet/v3-ConfidentialityClassification|2014-03-26)

                    Codes specifying the level of confidentiality of the composition.

                    Typecode
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    80. Composition.attester
                    Definition

                    A participant who has attested to the accuracy of the composition/document.

                    ShortAttests to accuracy of composition
                    Comments

                    Only list each attester once.

                    Control0..*
                    TypeBackboneElement
                    Is Modifierfalse
                    Summaryfalse
                    Requirements

                    Identifies responsibility for the accuracy of the composition content.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    82. Composition.attester.id
                    Definition

                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                    ShortUnique id for inter-element referencing
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    84. Composition.attester.extension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                    ShortAdditional content defined by implementations
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Summaryfalse
                    Alternate Namesextensions, user content
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    86. Composition.attester.modifierExtension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                    ShortExtensions that cannot be ignored even if unrecognized
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    TypeExtension
                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                    Summarytrue
                    Requirements

                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                    Alternate Namesextensions, user content, modifiers
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    88. Composition.attester.mode
                    Definition

                    The type of attestation the authenticator offers.

                    Shortpersonal | professional | legal | official
                    Control1..1
                    BindingThe codes SHALL be taken from CompositionAttestationMode
                    (required to http://hl7.org/fhir/ValueSet/composition-attestation-mode|4.0.1)

                    The way in which a person authenticated a composition.

                    Typecode
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summaryfalse
                    Requirements

                    Indicates the level of authority of the attestation.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    90. Composition.attester.time
                    Definition

                    When the composition was attested by the party.

                    ShortWhen the composition was attested
                    Control0..1
                    TypedateTime
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summaryfalse
                    Requirements

                    Identifies when the information in the composition was deemed accurate. (Things may have changed since then.).

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    92. Composition.attester.party
                    Definition

                    Who attested the composition in the specified way.

                    ShortWho attested the composition
                    Control0..1
                    TypeReference(CH Core Patient, RelatedPerson, CH Core Practitioner, CH Core PractitionerRole, CH Core Organization)
                    Is Modifierfalse
                    Summaryfalse
                    Requirements

                    Identifies who has taken on the responsibility for accuracy of the composition content.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    94. Composition.attester.party.id
                    Definition

                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                    ShortUnique id for inter-element referencing
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    96. Composition.attester.party.extension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                    ShortAdditional content defined by implementations
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Summaryfalse
                    Alternate Namesextensions, user content
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    SlicingThis element introduces a set of slices on Composition.attester.party.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 98. Composition.attester.party.reference
                      Definition

                      A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                      ShortLiteral reference, Relative, internal or absolute URL
                      Comments

                      Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                      Control1..1
                      This element is affected by the following invariants: ref-1
                      Typestring
                      Is Modifierfalse
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      100. Composition.attester.party.type
                      Definition

                      The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                      The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                      ShortType the reference refers to (e.g. "Patient")
                      Comments

                      This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                      Control0..1
                      BindingUnless not suitable, these codes SHALL be taken from ResourceType
                      (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                      Aa resource (or, for logical models, the URI of the logical model).

                      Typeuri
                      Is Modifierfalse
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      102. Composition.attester.party.identifier
                      Definition

                      An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                      ShortLogical reference, when literal reference is not known
                      Comments

                      When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                      When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                      Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                      Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                      NoteThis is a business identifier, not a resource identifier (see discussion)
                      Control0..1
                      TypeIdentifier
                      Is Modifierfalse
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      104. Composition.attester.party.display
                      Definition

                      Plain text narrative that identifies the resource in addition to the resource reference.

                      ShortText alternative for the resource
                      Comments

                      This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                      Control0..1
                      Typestring
                      Is Modifierfalse
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      106. Composition.custodian
                      Definition

                      Identifies the organization or group who is responsible for ongoing maintenance of and access to the composition/document information.

                      ShortOrganization which maintains the composition
                      Comments

                      This is useful when documents are derived from a composition - provides guidance for how to get the latest version of the document. This is optional because this is sometimes not known by the authoring system, and can be inferred by context. However, it is important that this information be known when working with a derived document, so providing a custodian is encouraged.

                      Control0..1
                      TypeReference(CH Core Organization)
                      Is Modifierfalse
                      Summarytrue
                      Requirements

                      Identifies where to go to find the current version, where to report issues, etc.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      108. Composition.custodian.id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      110. Composition.custodian.extension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortAdditional content defined by implementations
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Alternate Namesextensions, user content
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      SlicingThis element introduces a set of slices on Composition.custodian.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 112. Composition.custodian.reference
                        Definition

                        A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                        ShortLiteral reference, Relative, internal or absolute URL
                        Comments

                        Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                        Control1..1
                        This element is affected by the following invariants: ref-1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        114. Composition.custodian.type
                        Definition

                        The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                        The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                        ShortType the reference refers to (e.g. "Patient")
                        Comments

                        This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                        Control0..1
                        BindingUnless not suitable, these codes SHALL be taken from ResourceType
                        (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                        Aa resource (or, for logical models, the URI of the logical model).

                        Typeuri
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        116. Composition.custodian.identifier
                        Definition

                        An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                        ShortLogical reference, when literal reference is not known
                        Comments

                        When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                        When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                        Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                        Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                        NoteThis is a business identifier, not a resource identifier (see discussion)
                        Control0..1
                        TypeIdentifier
                        Is Modifierfalse
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        118. Composition.custodian.display
                        Definition

                        Plain text narrative that identifies the resource in addition to the resource reference.

                        ShortText alternative for the resource
                        Comments

                        This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                        Control0..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        120. Composition.relatesTo
                        Definition

                        Relationships that this composition has with other compositions or documents that already exist.

                        ShortRelationships to other compositions/documents
                        Comments

                        A document is a version specific composition.

                        Control0..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        122. Composition.relatesTo.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        124. Composition.relatesTo.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        126. Composition.relatesTo.modifierExtension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                        ShortExtensions that cannot be ignored even if unrecognized
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                        Summarytrue
                        Requirements

                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                        Alternate Namesextensions, user content, modifiers
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        128. Composition.relatesTo.code
                        Definition

                        The type of relationship that this composition has with anther composition or document.

                        Shortreplaces | transforms | signs | appends
                        Comments

                        If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

                        Control1..1
                        BindingThe codes SHALL be taken from DocumentRelationshipType
                        (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

                        The type of relationship between documents.

                        Typecode
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        130. Composition.relatesTo.target[x]
                        Definition

                        The target composition/document of this relationship.

                        ShortTarget of the relationship
                        Control1..1
                        TypeChoice of: Identifier, Reference(CH Core Composition)
                        [x] NoteSee Choice of Data Types for further information about how to use [x]
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        132. Composition.event
                        Definition

                        The clinical service, such as a colonoscopy or an appendectomy, being documented.

                        ShortThe clinical service(s) being documented
                        Comments

                        The event needs to be consistent with the type element, though can provide further information if desired.

                        Control0..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Summarytrue
                        Requirements

                        Provides context for the composition and creates a linkage between a resource describing an event and the composition created describing the event.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        134. Composition.event.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        136. Composition.event.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        138. Composition.event.modifierExtension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                        ShortExtensions that cannot be ignored even if unrecognized
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                        Summarytrue
                        Requirements

                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                        Alternate Namesextensions, user content, modifiers
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        140. Composition.event.code
                        Definition

                        This list of codes represents the main clinical acts, such as a colonoscopy or an appendectomy, being documented. In some cases, the event is inherent in the typeCode, such as a "History and Physical Report" in which the procedure being documented is necessarily a "History and Physical" act.

                        ShortCode(s) that apply to the event being documented
                        Comments

                        An event can further specialize the act inherent in the typeCode, such as where it is simply "Procedure Report" and the procedure was a "colonoscopy". If one or more eventCodes are included, they SHALL NOT conflict with the values inherent in the classCode, practiceSettingCode or typeCode, as such a conflict would create an ambiguous situation. This short list of codes is provided to be used as key words for certain types of queries.

                        Control0..*
                        BindingFor example codes, see v3 Code System ActCode
                        (example to http://terminology.hl7.org/ValueSet/v3-ActCode)

                        This list of codes represents the main clinical acts being documented.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        142. Composition.event.period
                        Definition

                        The period of time covered by the documentation. There is no assertion that the documentation is a complete representation for this period, only that it documents events during this time.

                        ShortThe period covered by the documentation
                        Control0..1
                        TypePeriod
                        Is Modifierfalse
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        144. Composition.event.detail
                        Definition

                        The description and/or reference of the event(s) being documented. For example, this could be used to document such a colonoscopy or an appendectomy.

                        ShortThe event(s) being documented
                        Control0..*
                        TypeReference(Resource)
                        Is Modifierfalse
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        146. Composition.section
                        Definition

                        The root of the sections that make up the composition.

                        ShortComposition is broken into sections
                        Control1..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                        cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • pattern @ code
                        • 148. Composition.section.id
                          Definition

                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                          ShortUnique id for inter-element referencing
                          Control0..1
                          Typestring
                          Is Modifierfalse
                          XML FormatIn the XML format, this property is represented as an attribute.
                          Summaryfalse
                          150. Composition.section.extension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                          ShortAdditional content defined by implementations
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifierfalse
                          Summaryfalse
                          Alternate Namesextensions, user content
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          152. Composition.section.modifierExtension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                          ShortExtensions that cannot be ignored even if unrecognized
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                          Summarytrue
                          Requirements

                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                          Alternate Namesextensions, user content, modifiers
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          154. Composition.section.title
                          Definition

                          The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                          ShortLabel for section (e.g. for ToC)
                          Comments

                          The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

                          Control0..1
                          Typestring
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Summaryfalse
                          Requirements

                          Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                          Alternate Namesheader, label, caption
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          156. Composition.section.code
                          Definition

                          A code identifying the kind of content contained within the section. This must be consistent with the section title.

                          ShortClassification of section (recommended)
                          Comments

                          The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

                          If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

                          Control0..1
                          BindingFor example codes, see DocumentSectionCodes
                          (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

                          Classification of a section of a composition/document.

                          TypeCodeableConcept
                          Is Modifierfalse
                          Summaryfalse
                          Requirements

                          Provides computable standardized labels to topics within the document.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          158. Composition.section.author
                          Definition

                          Identifies who is responsible for the information in this section, not necessarily who typed it in.

                          ShortWho and/or what authored the section
                          Control0..*
                          TypeReference(CH Core Practitioner, CH Core PractitionerRole, Device, CH Core Patient, RelatedPerson, CH Core Organization)
                          Is Modifierfalse
                          Summaryfalse
                          Requirements

                          Identifies who is responsible for the content.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          160. Composition.section.focus
                          Definition

                          The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                          ShortWho/what the section is about, when it is not about the subject of composition
                          Comments

                          Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                          Control0..1
                          TypeReference(Resource)
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          162. Composition.section.text
                          Definition

                          A human-readable narrative that contains the attested content of the section, used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative.

                          ShortText summary of the section, for human interpretation
                          Comments

                          Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                          Control0..1
                          This element is affected by the following invariants: cmp-1
                          TypeNarrative
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          164. Composition.section.mode
                          Definition

                          How the entry list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

                          Shortworking | snapshot | changes
                          Comments

                          This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

                          Control0..1
                          BindingThe codes SHALL be taken from ListMode
                          (required to http://hl7.org/fhir/ValueSet/list-mode|4.0.1)

                          The processing mode that applies to this section.

                          Typecode
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Summaryfalse
                          Requirements

                          Sections are used in various ways, and it must be known in what way it is safe to use the entries in them.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          166. Composition.section.orderedBy
                          Definition

                          Specifies the order applied to the items in the section entries.

                          ShortOrder of section entries
                          Comments

                          Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order.

                          Control0..1
                          BindingThe codes SHOULD be taken from ListOrderCodes
                          (preferred to http://hl7.org/fhir/ValueSet/list-order)

                          What order applies to the items in the entry.

                          TypeCodeableConcept
                          Is Modifierfalse
                          Summaryfalse
                          Requirements

                          Important for presentation and rendering. Lists may be sorted to place more important information first or to group related entries.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          168. Composition.section.entry
                          Definition

                          A reference to the actual resource from which the narrative in the section is derived.

                          ShortA reference to data that supports this section
                          Comments

                          If there are no entries in the list, an emptyReason SHOULD be provided.

                          Control0..*
                          This element is affected by the following invariants: cmp-2
                          TypeReference(Resource)
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          170. Composition.section.emptyReason
                          Definition

                          If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                          ShortWhy the section is empty
                          Comments

                          The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

                          Control0..1
                          This element is affected by the following invariants: cmp-2
                          BindingThe codes SHOULD be taken from ListEmptyReasons
                          (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

                          If a section is empty, why it is empty.

                          TypeCodeableConcept
                          Is Modifierfalse
                          Summaryfalse
                          Requirements

                          Allows capturing things like "none exist" or "not asked" which can be important for most lists.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          172. Composition.section.section
                          Definition

                          A nested sub-section within this section.

                          ShortNested Section
                          Comments

                          Nested sections are primarily used to help human readers navigate to particular portions of the document.

                          Control0..*
                          This element is affected by the following invariants: cmp-1
                          TypeSee ttp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          174. Composition.section:orderReferral
                          Slice NameorderReferral
                          Definition

                          The root of the sections that make up the composition.

                          ShortContains the data that supports the order and referral by form.
                          Control1..1
                          TypeBackboneElement
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                          cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          176. Composition.section:orderReferral.id
                          Definition

                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                          ShortUnique id for inter-element referencing
                          Control0..1
                          Typestring
                          Is Modifierfalse
                          XML FormatIn the XML format, this property is represented as an attribute.
                          Summaryfalse
                          178. Composition.section:orderReferral.extension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                          ShortAdditional content defined by implementations
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifierfalse
                          Summaryfalse
                          Alternate Namesextensions, user content
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          180. Composition.section:orderReferral.modifierExtension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                          ShortExtensions that cannot be ignored even if unrecognized
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                          Summarytrue
                          Requirements

                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                          Alternate Namesextensions, user content, modifiers
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          182. Composition.section:orderReferral.title
                          Definition

                          The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                          ShortOrder-Referral
                          Comments

                          The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

                          Control1..1
                          Typestring
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supporttrue
                          Summaryfalse
                          Requirements

                          Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                          Alternate Namesheader, label, caption
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          184. Composition.section:orderReferral.code
                          Definition

                          A code identifying the kind of content contained within the section. This must be consistent with the section title.

                          ShortClassification of section (recommended)
                          Comments

                          The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

                          If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

                          Control1..1
                          BindingFor example codes, see DocumentSectionCodes
                          (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

                          Classification of a section of a composition/document.

                          TypeCodeableConcept
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          Requirements

                          Provides computable standardized labels to topics within the document.

                          Pattern Value{
                            "coding" : [{
                              "system" : "http://loinc.org",
                              "code" : "93037-0"
                            }]
                          }
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          186. Composition.section:orderReferral.author
                          Definition

                          Identifies who is responsible for the information in this section, not necessarily who typed it in.

                          ShortWho and/or what authored the section
                          Control0..*
                          TypeReference(CH Core Practitioner, CH Core PractitionerRole, Device, CH Core Patient, RelatedPerson, CH Core Organization)
                          Is Modifierfalse
                          Summaryfalse
                          Requirements

                          Identifies who is responsible for the content.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          188. Composition.section:orderReferral.focus
                          Definition

                          The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                          ShortWho/what the section is about, when it is not about the subject of composition
                          Comments

                          Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                          Control0..1
                          TypeReference(Resource)
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          190. Composition.section:orderReferral.text
                          Definition

                          A human-readable narrative that contains the attested content of the section, used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative.

                          ShortText summary of the section, for human interpretation
                          Comments

                          Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                          Control0..1
                          This element is affected by the following invariants: cmp-1
                          TypeNarrative
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          192. Composition.section:orderReferral.mode
                          Definition

                          How the entry list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

                          Shortworking | snapshot | changes
                          Comments

                          This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

                          Control0..1
                          BindingThe codes SHALL be taken from ListMode
                          (required to http://hl7.org/fhir/ValueSet/list-mode|4.0.1)

                          The processing mode that applies to this section.

                          Typecode
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Summaryfalse
                          Requirements

                          Sections are used in various ways, and it must be known in what way it is safe to use the entries in them.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          194. Composition.section:orderReferral.orderedBy
                          Definition

                          Specifies the order applied to the items in the section entries.

                          ShortOrder of section entries
                          Comments

                          Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order.

                          Control0..1
                          BindingThe codes SHOULD be taken from ListOrderCodes
                          (preferred to http://hl7.org/fhir/ValueSet/list-order)

                          What order applies to the items in the entry.

                          TypeCodeableConcept
                          Is Modifierfalse
                          Summaryfalse
                          Requirements

                          Important for presentation and rendering. Lists may be sorted to place more important information first or to group related entries.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          196. Composition.section:orderReferral.entry
                          Definition

                          A reference to the actual resource from which the narrative in the section is derived.

                          ShortA reference to data that supports this section
                          Comments

                          If there are no entries in the list, an emptyReason SHOULD be provided.

                          Control1..*
                          This element is affected by the following invariants: cmp-2
                          TypeReference(Resource)
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          SlicingThis element introduces a set of slices on Composition.section.entry. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                          • profile @ resolve()
                          • 198. Composition.section:orderReferral.entry:Questionnaire
                            Slice NameQuestionnaire
                            Definition

                            A reference to the actual resource from which the narrative in the section is derived.

                            ShortQuestionnaire
                            Comments

                            If there are no entries in the list, an emptyReason SHOULD be provided.

                            Control0..1
                            This element is affected by the following invariants: cmp-2
                            TypeReference(CH ORF Questionnaire)
                            Is Modifierfalse
                            Must Supporttrue
                            Summaryfalse
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            200. Composition.section:orderReferral.entry:Questionnaire.id
                            Definition

                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                            ShortUnique id for inter-element referencing
                            Control0..1
                            Typestring
                            Is Modifierfalse
                            XML FormatIn the XML format, this property is represented as an attribute.
                            Summaryfalse
                            202. Composition.section:orderReferral.entry:Questionnaire.extension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortAdditional content defined by implementations
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            SlicingThis element introduces a set of slices on Composition.section.entry.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 204. Composition.section:orderReferral.entry:Questionnaire.reference
                              Definition

                              A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                              ShortLiteral reference, Relative, internal or absolute URL
                              Comments

                              Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                              Control1..1
                              This element is affected by the following invariants: ref-1
                              Typestring
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Must Supporttrue
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              206. Composition.section:orderReferral.entry:Questionnaire.type
                              Definition

                              The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                              The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                              ShortType the reference refers to (e.g. "Patient")
                              Comments

                              This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                              Control0..1
                              BindingUnless not suitable, these codes SHALL be taken from ResourceType
                              (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                              Aa resource (or, for logical models, the URI of the logical model).

                              Typeuri
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              208. Composition.section:orderReferral.entry:Questionnaire.identifier
                              Definition

                              An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                              ShortLogical reference, when literal reference is not known
                              Comments

                              When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                              When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                              Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                              Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                              NoteThis is a business identifier, not a resource identifier (see discussion)
                              Control0..1
                              TypeIdentifier
                              Is Modifierfalse
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              210. Composition.section:orderReferral.entry:Questionnaire.display
                              Definition

                              Plain text narrative that identifies the resource in addition to the resource reference.

                              ShortText alternative for the resource
                              Comments

                              This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                              Control0..1
                              Typestring
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              212. Composition.section:orderReferral.entry:QuestionnaireResponse
                              Slice NameQuestionnaireResponse
                              Definition

                              A reference to the actual resource from which the narrative in the section is derived.

                              ShortQuestionnaireResponse
                              Comments

                              If there are no entries in the list, an emptyReason SHOULD be provided.

                              Control0..1
                              This element is affected by the following invariants: cmp-2
                              TypeReference(CH ORF QuestionnaireResponse)
                              Is Modifierfalse
                              Must Supporttrue
                              Summaryfalse
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              214. Composition.section:orderReferral.entry:QuestionnaireResponse.id
                              Definition

                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                              ShortUnique id for inter-element referencing
                              Control0..1
                              Typestring
                              Is Modifierfalse
                              XML FormatIn the XML format, this property is represented as an attribute.
                              Summaryfalse
                              216. Composition.section:orderReferral.entry:QuestionnaireResponse.extension
                              Definition

                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                              ShortAdditional content defined by implementations
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..*
                              TypeExtension
                              Is Modifierfalse
                              Summaryfalse
                              Alternate Namesextensions, user content
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              SlicingThis element introduces a set of slices on Composition.section.entry.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 218. Composition.section:orderReferral.entry:QuestionnaireResponse.reference
                                Definition

                                A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                ShortLiteral reference, Relative, internal or absolute URL
                                Comments

                                Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                Control1..1
                                This element is affected by the following invariants: ref-1
                                Typestring
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Must Supporttrue
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                220. Composition.section:orderReferral.entry:QuestionnaireResponse.type
                                Definition

                                The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                ShortType the reference refers to (e.g. "Patient")
                                Comments

                                This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                Control0..1
                                BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                Aa resource (or, for logical models, the URI of the logical model).

                                Typeuri
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                222. Composition.section:orderReferral.entry:QuestionnaireResponse.identifier
                                Definition

                                An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                ShortLogical reference, when literal reference is not known
                                Comments

                                When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                NoteThis is a business identifier, not a resource identifier (see discussion)
                                Control0..1
                                TypeIdentifier
                                Is Modifierfalse
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                224. Composition.section:orderReferral.entry:QuestionnaireResponse.display
                                Definition

                                Plain text narrative that identifies the resource in addition to the resource reference.

                                ShortText alternative for the resource
                                Comments

                                This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                Control0..1
                                Typestring
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                226. Composition.section:orderReferral.entry:ServiceRequest
                                Slice NameServiceRequest
                                Definition

                                A reference to the actual resource from which the narrative in the section is derived.

                                ShortServiceRequest
                                Comments

                                If there are no entries in the list, an emptyReason SHOULD be provided.

                                Control1..*
                                This element is affected by the following invariants: cmp-2
                                TypeReference(CH ORF ServiceRequest)
                                Is Modifierfalse
                                Must Supporttrue
                                Summaryfalse
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                228. Composition.section:orderReferral.entry:ServiceRequest.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                230. Composition.section:orderReferral.entry:ServiceRequest.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                SlicingThis element introduces a set of slices on Composition.section.entry.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 232. Composition.section:orderReferral.entry:ServiceRequest.reference
                                  Definition

                                  A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                  ShortLiteral reference, Relative, internal or absolute URL
                                  Comments

                                  Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                  Control1..1
                                  This element is affected by the following invariants: ref-1
                                  Typestring
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Must Supporttrue
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  234. Composition.section:orderReferral.entry:ServiceRequest.type
                                  Definition

                                  The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                  The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                  ShortType the reference refers to (e.g. "Patient")
                                  Comments

                                  This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                  Control0..1
                                  BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                  (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                  Aa resource (or, for logical models, the URI of the logical model).

                                  Typeuri
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  236. Composition.section:orderReferral.entry:ServiceRequest.identifier
                                  Definition

                                  An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                  ShortLogical reference, when literal reference is not known
                                  Comments

                                  When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                  When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                  Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                  Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                  NoteThis is a business identifier, not a resource identifier (see discussion)
                                  Control0..1
                                  TypeIdentifier
                                  Is Modifierfalse
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  238. Composition.section:orderReferral.entry:ServiceRequest.display
                                  Definition

                                  Plain text narrative that identifies the resource in addition to the resource reference.

                                  ShortText alternative for the resource
                                  Comments

                                  This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  240. Composition.section:orderReferral.entry:DocumentReference
                                  Slice NameDocumentReference
                                  Definition

                                  A reference to the actual resource from which the narrative in the section is derived.

                                  ShortDocumentReference
                                  Comments

                                  If there are no entries in the list, an emptyReason SHOULD be provided.

                                  Control0..*
                                  This element is affected by the following invariants: cmp-2
                                  TypeReference(CH ORF DocumentReference)
                                  Is Modifierfalse
                                  Must Supporttrue
                                  Summaryfalse
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  242. Composition.section:orderReferral.entry:DocumentReference.id
                                  Definition

                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                  ShortUnique id for inter-element referencing
                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  244. Composition.section:orderReferral.entry:DocumentReference.extension
                                  Definition

                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                  ShortAdditional content defined by implementations
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  TypeExtension
                                  Is Modifierfalse
                                  Summaryfalse
                                  Alternate Namesextensions, user content
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  SlicingThis element introduces a set of slices on Composition.section.entry.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 246. Composition.section:orderReferral.entry:DocumentReference.reference
                                    Definition

                                    A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                    ShortLiteral reference, Relative, internal or absolute URL
                                    Comments

                                    Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                    Control1..1
                                    This element is affected by the following invariants: ref-1
                                    Typestring
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Must Supporttrue
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    248. Composition.section:orderReferral.entry:DocumentReference.type
                                    Definition

                                    The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                    The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                    ShortType the reference refers to (e.g. "Patient")
                                    Comments

                                    This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                    Control0..1
                                    BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                    (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                    Aa resource (or, for logical models, the URI of the logical model).

                                    Typeuri
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    250. Composition.section:orderReferral.entry:DocumentReference.identifier
                                    Definition

                                    An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                    ShortLogical reference, when literal reference is not known
                                    Comments

                                    When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                    When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                    Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                    Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                    NoteThis is a business identifier, not a resource identifier (see discussion)
                                    Control0..1
                                    TypeIdentifier
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    252. Composition.section:orderReferral.entry:DocumentReference.display
                                    Definition

                                    Plain text narrative that identifies the resource in addition to the resource reference.

                                    ShortText alternative for the resource
                                    Comments

                                    This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                    Control0..1
                                    Typestring
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    254. Composition.section:orderReferral.emptyReason
                                    Definition

                                    If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                                    ShortWhy the section is empty
                                    Comments

                                    The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

                                    Control0..1
                                    This element is affected by the following invariants: cmp-2
                                    BindingThe codes SHOULD be taken from ListEmptyReasons
                                    (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

                                    If a section is empty, why it is empty.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Allows capturing things like "none exist" or "not asked" which can be important for most lists.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    256. Composition.section:orderReferral.section
                                    Definition

                                    A nested sub-section within this section.

                                    ShortNested Section
                                    Comments

                                    Nested sections are primarily used to help human readers navigate to particular portions of the document.

                                    Control0..0
                                    This element is affected by the following invariants: cmp-1
                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                                    Is Modifierfalse
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    258. Composition.section:originalRepresentation
                                    Slice NameoriginalRepresentation
                                    Definition

                                    The root of the sections that make up the composition.

                                    ShortContains the original representation as a PDF of the current document.
                                    Control0..1
                                    TypeBackboneElement
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summaryfalse
                                    Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                                    cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                                    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    260. Composition.section:originalRepresentation.id
                                    Definition

                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                    ShortUnique id for inter-element referencing
                                    Control0..1
                                    Typestring
                                    Is Modifierfalse
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    Summaryfalse
                                    262. Composition.section:originalRepresentation.extension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortAdditional content defined by implementations
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    264. Composition.section:originalRepresentation.modifierExtension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                    ShortExtensions that cannot be ignored even if unrecognized
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                    Summarytrue
                                    Requirements

                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                    Alternate Namesextensions, user content, modifiers
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    266. Composition.section:originalRepresentation.title
                                    Definition

                                    The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                                    ShortOriginal representation
                                    Comments

                                    The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

                                    Control1..1
                                    Typestring
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Must Supporttrue
                                    Summaryfalse
                                    Requirements

                                    Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                                    Alternate Namesheader, label, caption
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    268. Composition.section:originalRepresentation.code
                                    Definition

                                    A code identifying the kind of content contained within the section. This must be consistent with the section title.

                                    ShortClassification of section (recommended)
                                    Comments

                                    The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

                                    If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

                                    Control1..1
                                    BindingFor example codes, see DocumentSectionCodes
                                    (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

                                    Classification of a section of a composition/document.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summaryfalse
                                    Requirements

                                    Provides computable standardized labels to topics within the document.

                                    Pattern Value{
                                      "coding" : [{
                                        "system" : "http://loinc.org",
                                        "code" : "55108-5"
                                      }]
                                    }
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    270. Composition.section:originalRepresentation.author
                                    Definition

                                    Identifies who is responsible for the information in this section, not necessarily who typed it in.

                                    ShortWho and/or what authored the section
                                    Control0..*
                                    TypeReference(CH Core Practitioner, CH Core PractitionerRole, Device, CH Core Patient, RelatedPerson, CH Core Organization)
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Identifies who is responsible for the content.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    272. Composition.section:originalRepresentation.focus
                                    Definition

                                    The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                                    ShortWho/what the section is about, when it is not about the subject of composition
                                    Comments

                                    Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                                    Control0..1
                                    TypeReference(Resource)
                                    Is Modifierfalse
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    274. Composition.section:originalRepresentation.text
                                    Definition

                                    A human-readable narrative that contains the attested content of the section, used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative.

                                    ShortRepresentation of the original view
                                    Comments

                                    Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                                    Control1..1
                                    This element is affected by the following invariants: cmp-1
                                    TypeNarrative
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    276. Composition.section:originalRepresentation.mode
                                    Definition

                                    How the entry list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

                                    Shortworking | snapshot | changes
                                    Comments

                                    This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

                                    Control0..1
                                    BindingThe codes SHALL be taken from ListMode
                                    (required to http://hl7.org/fhir/ValueSet/list-mode|4.0.1)

                                    The processing mode that applies to this section.

                                    Typecode
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summaryfalse
                                    Requirements

                                    Sections are used in various ways, and it must be known in what way it is safe to use the entries in them.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    278. Composition.section:originalRepresentation.orderedBy
                                    Definition

                                    Specifies the order applied to the items in the section entries.

                                    ShortOrder of section entries
                                    Comments

                                    Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order.

                                    Control0..1
                                    BindingThe codes SHOULD be taken from ListOrderCodes
                                    (preferred to http://hl7.org/fhir/ValueSet/list-order)

                                    What order applies to the items in the entry.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Important for presentation and rendering. Lists may be sorted to place more important information first or to group related entries.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    280. Composition.section:originalRepresentation.entry
                                    Definition

                                    A reference to the actual resource from which the narrative in the section is derived.

                                    ShortAccording to the EPR ordonnance the PDF has to be in PDF/A-1 or PDF/A-2 format.
                                    Comments

                                    If there are no entries in the list, an emptyReason SHOULD be provided.

                                    Control1..1
                                    This element is affected by the following invariants: cmp-2
                                    TypeReference(Binary)
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    282. Composition.section:originalRepresentation.emptyReason
                                    Definition

                                    If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                                    ShortWhy the section is empty
                                    Comments

                                    The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

                                    Control0..1
                                    This element is affected by the following invariants: cmp-2
                                    BindingThe codes SHOULD be taken from ListEmptyReasons
                                    (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

                                    If a section is empty, why it is empty.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Allows capturing things like "none exist" or "not asked" which can be important for most lists.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    284. Composition.section:originalRepresentation.section
                                    Definition

                                    A nested sub-section within this section.

                                    ShortNested Section
                                    Comments

                                    Nested sections are primarily used to help human readers navigate to particular portions of the document.

                                    Control0..0
                                    This element is affected by the following invariants: cmp-1
                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                                    Is Modifierfalse
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))