CH RAD-Order (R4)
2.0.0 - trial-use Switzerland flag

This page is part of the CH RAD-Order (R4) (v2.0.0: STU 2) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Resource Profile: ChRadOrderImagingStudy - Detailed Descriptions

Active as of 2024-12-18

Definitions for the ch-rad-order-imagingstudy resource profile.

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

0. ImagingStudy
ShortCH RAD-Order ImagingStudy
2. ImagingStudy.identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Control2..?
Must Supporttrue
SlicingThis element introduces a set of slices on ImagingStudy.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ $this
  • 4. ImagingStudy.identifier:studyInstanceUid
    Slice NamestudyInstanceUid
    ShortStudy Instanve UID
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control1..1
    Must Supporttrue
    Pattern Value{
      "type" : {
        "coding" : [{
          "system" : "urn:dicom:uid",
          "code" : "PLAC"
        }]
      }
    }
    6. ImagingStudy.identifier:studyInstanceUid.system
    Must Supporttrue
    8. ImagingStudy.identifier:studyInstanceUid.value
    Must Supporttrue
    10. ImagingStudy.identifier:acsn
    Slice Nameacsn
    ShortAccession Number
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control1..1
    Must Supporttrue
    Pattern Value{
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
          "code" : "ACSN"
        }]
      }
    }
    12. ImagingStudy.identifier:acsn.system
    Must Supporttrue
    14. ImagingStudy.identifier:acsn.value
    Must Supporttrue
    16. ImagingStudy.status
    Must Supporttrue
    18. ImagingStudy.subject
    TypeReference(CH Core Patient, Device, Group)
    Must Supporttrue
    Must Support TypesNo must-support rules about the choice of types/profiles
    20. ImagingStudy.series
    Must Supporttrue
    22. ImagingStudy.series.uid
    Must Supporttrue
    24. ImagingStudy.series.modality
    Must Supporttrue
    26. ImagingStudy.series.performer
    Must Supporttrue
    28. ImagingStudy.series.performer.actor
    TypeReference(CH Core Practitioner, CH Core PractitionerRole, CH Core Organization, CareTeam, CH Core Patient, Device, RelatedPerson)
    Must Supporttrue
    Must Support TypesNo must-support rules about the choice of types/profiles
    30. ImagingStudy.series.instance
    Must Supporttrue
    32. ImagingStudy.series.instance.uid
    Must Supporttrue
    34. ImagingStudy.series.instance.sopClass
    Must Supporttrue

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

    0. ImagingStudy
    Definition

    Representation of the content produced in a DICOM imaging study. A study comprises a set of series, each of which includes a set of Service-Object Pair Instances (SOP Instances - images or other data) acquired or produced in a common context. A series is of only one modality (e.g. X-ray, CT, MR, ultrasound), but a study may have multiple series of different modalities.

    ShortCH RAD-Order ImagingStudyA set of images produced in single study (one or more series of references images)
    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. ImagingStudy.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. ImagingStudy.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())
    6. ImagingStudy.identifier
    Definition

    Identifiers for the ImagingStudy such as DICOM Study Instance UID, and Accession Number.

    ShortIdentifiers for the whole study
    Comments

    See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.


    See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.

    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control20..*
    TypeIdentifier
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

    If one or more series elements are present in the ImagingStudy, then there shall be one DICOM Study UID identifier (see DICOM PS 3.3 C.7.2.

    Alternate NamesStudyInstanceUID, AccessionNumber
    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 ImagingStudy.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ $this
    • 8. ImagingStudy.identifier:studyInstanceUid
      Slice NamestudyInstanceUid
      Definition

      Identifiers for the ImagingStudy such as DICOM Study Instance UID, and Accession Number.

      ShortStudy Instanve UIDIdentifiers for the whole study
      Comments

      See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.


      See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.

      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control10..1*
      TypeIdentifier
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      If one or more series elements are present in the ImagingStudy, then there shall be one DICOM Study UID identifier (see DICOM PS 3.3 C.7.2.

      Alternate NamesStudyInstanceUID, AccessionNumber
      Pattern Value{
        "type" : {
          "coding" : [{
            "system" : "urn:dicom:uid",
            "code" : "PLAC"
          }]
        }
      }
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      10. ImagingStudy.identifier:studyInstanceUid.use
      Definition

      The purpose of this identifier.

      Shortusual | official | temp | secondary | old (If known)
      Comments

      Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

      Control0..1
      BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|4.0.1
      (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

      Identifies the purpose for this identifier, if known .

      Typecode
      Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      12. ImagingStudy.identifier:studyInstanceUid.system
      Definition

      Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

      ShortThe namespace for the identifier value
      Comments

      Identifier.system is always case sensitive.

      Control0..1
      Typeuri
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

      Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      14. ImagingStudy.identifier:studyInstanceUid.value
      Definition

      The portion of the identifier typically relevant to the user and which is unique within the context of the system.

      ShortThe value that is unique
      Comments

      If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Example<br/><b>General</b>:123456
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      16. ImagingStudy.identifier:acsn
      Slice Nameacsn
      Definition

      Identifiers for the ImagingStudy such as DICOM Study Instance UID, and Accession Number.

      ShortAccession NumberIdentifiers for the whole study
      Comments

      See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.


      See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.

      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control10..1*
      TypeIdentifier
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      If one or more series elements are present in the ImagingStudy, then there shall be one DICOM Study UID identifier (see DICOM PS 3.3 C.7.2.

      Alternate NamesStudyInstanceUID, AccessionNumber
      Pattern Value{
        "type" : {
          "coding" : [{
            "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
            "code" : "ACSN"
          }]
        }
      }
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      18. ImagingStudy.identifier:acsn.use
      Definition

      The purpose of this identifier.

      Shortusual | official | temp | secondary | old (If known)
      Comments

      Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

      Control0..1
      BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|4.0.1
      (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

      Identifies the purpose for this identifier, if known .

      Typecode
      Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      20. ImagingStudy.identifier:acsn.system
      Definition

      Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

      ShortThe namespace for the identifier value
      Comments

      Identifier.system is always case sensitive.

      Control0..1
      Typeuri
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

      Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      22. ImagingStudy.identifier:acsn.value
      Definition

      The portion of the identifier typically relevant to the user and which is unique within the context of the system.

      ShortThe value that is unique
      Comments

      If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Example<br/><b>General</b>:123456
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. ImagingStudy.status
      Definition

      The current state of the ImagingStudy.

      Shortregistered | available | cancelled | entered-in-error | unknown
      Comments

      Unknown does not represent "other" - one of the defined statuses must apply. Unknown is used when the authoring system is not sure what the current status is.

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

      The status of the ImagingStudy.

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

      The subject, typically a patient, of the imaging study.

      ShortWho or what is the subject of the study
      Comments

      QA phantoms can be recorded with a Device; multiple subjects (such as mice) can be recorded with a Group.

      Control1..1
      TypeReference(CH Core Patient, Device, Group, Patient)
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      28. ImagingStudy.series
      Definition

      Each study has one or more series of images or other content.

      ShortEach study has one or more series of instances
      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      30. ImagingStudy.series.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())
      32. ImagingStudy.series.uid
      Definition

      The DICOM Series Instance UID for the series.

      ShortDICOM Series Instance UID for the series
      Comments

      See DICOM PS3.3 C.7.3.

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

      DICOM Series Instance UID.

      Alternate NamesSeriesInstanceUID
      Example<br/><b>General</b>:2.16.124.113543.6003.2588828330.45298.17418.2723805630
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      34. ImagingStudy.series.modality
      Definition

      The modality of this series sequence.

      ShortThe modality of the instances in the series
      Control1..1
      BindingUnless not suitable, these codes SHALL be taken from AcquisitionModality .http://dicom.nema.org/medical/dicom/current/output/chtml/part16/sect_CID_29.html
      (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part16/sect_CID_29.html)

      Type of acquired data in the instance.

      TypeCoding
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Alternate NamesModality
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      36. ImagingStudy.series.performer
      Definition

      Indicates who or what performed the series and how they were involved.

      ShortWho performed the series
      Comments

      If the person who performed the series is not known, their Organization may be recorded. A patient, or related person, may be the performer, e.g. for patient-captured images.

      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      The performer is recorded at the series level, since each series in a study may be performed by a different performer, at different times, and using different devices. A series may be performed by multiple performers.

      Alternate NamesPerformingPhysicianName, OperatorName
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      38. ImagingStudy.series.performer.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())
      40. ImagingStudy.series.performer.actor
      Definition

      Indicates who or what performed the series.

      ShortWho performed the series
      Control1..1
      TypeReference(CH Core Practitioner, CH Core PractitionerRole, CH Core Organization, CareTeam, CH Core Patient, Device, RelatedPerson, Practitioner, PractitionerRole, Organization, Patient)
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      42. ImagingStudy.series.instance
      Definition

      A single SOP instance within the series, e.g. an image, or presentation state.

      ShortA single SOP instance from the series
      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      44. ImagingStudy.series.instance.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())
      46. ImagingStudy.series.instance.uid
      Definition

      The DICOM SOP Instance UID for this image or other DICOM content.

      ShortDICOM SOP Instance UID
      Comments

      See DICOM PS3.3 C.12.1.

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

      DICOM SOP Instance UID.

      Alternate NamesSOPInstanceUID
      Example<br/><b>General</b>:2.16.124.113543.6003.189642796.63084.16748.2599092903
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      48. ImagingStudy.series.instance.sopClass
      Definition

      DICOM instance type.

      ShortDICOM class type
      Control1..1
      BindingUnless not suitable, these codes SHALL be taken from http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1
      (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1)

      The sopClass for the instance.

      TypeCoding
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Alternate NamesSOPClassUID
      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. ImagingStudy
      Definition

      Representation of the content produced in a DICOM imaging study. A study comprises a set of series, each of which includes a set of Service-Object Pair Instances (SOP Instances - images or other data) acquired or produced in a common context. A series is of only one modality (e.g. X-ray, CT, MR, ultrasound), but a study may have multiple series of different modalities.

      ShortCH RAD-Order ImagingStudy
      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. ImagingStudy.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. ImagingStudy.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. ImagingStudy.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. ImagingStudy.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. ImagingStudy.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.

      ShortText 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.

      Control0..1
      TypeNarrative
      Is Modifierfalse
      Summaryfalse
      Alternate Namesnarrative, html, xhtml, display
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      12. ImagingStudy.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. ImagingStudy.extension
      Definition

      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.

      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())
      16. ImagingStudy.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())
      18. ImagingStudy.identifier
      Definition

      Identifiers for the ImagingStudy such as DICOM Study Instance UID, and Accession Number.

      ShortIdentifiers for the whole study
      Comments

      See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.

      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control2..*
      TypeIdentifier
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      If one or more series elements are present in the ImagingStudy, then there shall be one DICOM Study UID identifier (see DICOM PS 3.3 C.7.2.

      Alternate NamesStudyInstanceUID, AccessionNumber
      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 ImagingStudy.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ $this
      • 20. ImagingStudy.identifier:studyInstanceUid
        Slice NamestudyInstanceUid
        Definition

        Identifiers for the ImagingStudy such as DICOM Study Instance UID, and Accession Number.

        ShortStudy Instanve UID
        Comments

        See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.

        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control1..1
        TypeIdentifier
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Requirements

        If one or more series elements are present in the ImagingStudy, then there shall be one DICOM Study UID identifier (see DICOM PS 3.3 C.7.2.

        Alternate NamesStudyInstanceUID, AccessionNumber
        Pattern Value{
          "type" : {
            "coding" : [{
              "system" : "urn:dicom:uid",
              "code" : "PLAC"
            }]
          }
        }
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        22. ImagingStudy.identifier:studyInstanceUid.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
        24. ImagingStudy.identifier:studyInstanceUid.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 ImagingStudy.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 26. ImagingStudy.identifier:studyInstanceUid.use
          Definition

          The purpose of this identifier.

          Shortusual | official | temp | secondary | old (If known)
          Comments

          Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

          Control0..1
          BindingThe codes SHALL be taken from IdentifierUse
          (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

          Identifies the purpose for this identifier, if known .

          Typecode
          Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          28. ImagingStudy.identifier:studyInstanceUid.type
          Definition

          A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

          ShortDescription of identifier
          Comments

          This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

          Control0..1
          BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
          (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

          A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Allows users to make use of identifiers when the identifier system is not known.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. ImagingStudy.identifier:studyInstanceUid.system
          Definition

          Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

          ShortThe namespace for the identifier value
          Comments

          Identifier.system is always case sensitive.

          Control0..1
          Typeuri
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Requirements

          There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

          Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          32. ImagingStudy.identifier:studyInstanceUid.value
          Definition

          The portion of the identifier typically relevant to the user and which is unique within the context of the system.

          ShortThe value that is unique
          Comments

          If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Example<br/><b>General</b>:123456
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          34. ImagingStudy.identifier:studyInstanceUid.period
          Definition

          Time period during which identifier is/was valid for use.

          ShortTime period when id is/was valid for use
          Control0..1
          TypePeriod
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          36. ImagingStudy.identifier:studyInstanceUid.assigner
          Definition

          Organization that issued/manages the identifier.

          ShortOrganization that issued id (may be just text)
          Comments

          The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

          Control0..1
          TypeReference(Organization)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          38. ImagingStudy.identifier:acsn
          Slice Nameacsn
          Definition

          Identifiers for the ImagingStudy such as DICOM Study Instance UID, and Accession Number.

          ShortAccession Number
          Comments

          See discussion under Imaging Study Implementation Notes for encoding of DICOM Study Instance UID. Accession Number should use ACSN Identifier type.

          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control1..1
          TypeIdentifier
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          If one or more series elements are present in the ImagingStudy, then there shall be one DICOM Study UID identifier (see DICOM PS 3.3 C.7.2.

          Alternate NamesStudyInstanceUID, AccessionNumber
          Pattern Value{
            "type" : {
              "coding" : [{
                "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
                "code" : "ACSN"
              }]
            }
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. ImagingStudy.identifier:acsn.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
          42. ImagingStudy.identifier:acsn.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 ImagingStudy.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 44. ImagingStudy.identifier:acsn.use
            Definition

            The purpose of this identifier.

            Shortusual | official | temp | secondary | old (If known)
            Comments

            Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

            Control0..1
            BindingThe codes SHALL be taken from IdentifierUse
            (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

            Identifies the purpose for this identifier, if known .

            Typecode
            Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Requirements

            Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            46. ImagingStudy.identifier:acsn.type
            Definition

            A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

            ShortDescription of identifier
            Comments

            This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

            Control0..1
            BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
            (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

            A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Requirements

            Allows users to make use of identifiers when the identifier system is not known.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            48. ImagingStudy.identifier:acsn.system
            Definition

            Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

            ShortThe namespace for the identifier value
            Comments

            Identifier.system is always case sensitive.

            Control0..1
            Typeuri
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Requirements

            There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

            Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            50. ImagingStudy.identifier:acsn.value
            Definition

            The portion of the identifier typically relevant to the user and which is unique within the context of the system.

            ShortThe value that is unique
            Comments

            If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

            Control0..1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Example<br/><b>General</b>:123456
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            52. ImagingStudy.identifier:acsn.period
            Definition

            Time period during which identifier is/was valid for use.

            ShortTime period when id is/was valid for use
            Control0..1
            TypePeriod
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            54. ImagingStudy.identifier:acsn.assigner
            Definition

            Organization that issued/manages the identifier.

            ShortOrganization that issued id (may be just text)
            Comments

            The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

            Control0..1
            TypeReference(Organization)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            56. ImagingStudy.status
            Definition

            The current state of the ImagingStudy.

            Shortregistered | available | cancelled | entered-in-error | unknown
            Comments

            Unknown does not represent "other" - one of the defined statuses must apply. Unknown is used when the authoring system is not sure what the current status is.

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

            The status of the ImagingStudy.

            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
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            58. ImagingStudy.modality
            Definition

            A list of all the series.modality values that are actual acquisition modalities, i.e. those in the DICOM Context Group 29 (value set OID 1.2.840.10008.6.1.19).

            ShortAll series modality if actual acquisition modalities
            Control0..*
            BindingUnless not suitable, these codes SHALL be taken from AcquisitionModality .
            (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part16/sect_CID_29.html)

            Type of acquired data in the instance.

            TypeCoding
            Is Modifierfalse
            Summarytrue
            Alternate NamesModalitiesInStudy
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            60. ImagingStudy.subject
            Definition

            The subject, typically a patient, of the imaging study.

            ShortWho or what is the subject of the study
            Comments

            QA phantoms can be recorded with a Device; multiple subjects (such as mice) can be recorded with a Group.

            Control1..1
            TypeReference(CH Core Patient, Device, Group)
            Is Modifierfalse
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            62. ImagingStudy.encounter
            Definition

            The healthcare event (e.g. a patient and healthcare provider interaction) during which this ImagingStudy is made.

            ShortEncounter with which this imaging study is associated
            Comments

            This will typically be the encounter the event occurred within, but some events may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter (e.g. pre-admission test).

            Control0..1
            TypeReference(Encounter)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            64. ImagingStudy.started
            Definition

            Date and time the study started.

            ShortWhen the study was started
            Control0..1
            TypedateTime
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Alternate NamesStudyDate, StudyTime
            Example<br/><b>General</b>:2011-01-01T11:01:20+03:00
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            66. ImagingStudy.basedOn
            Definition

            A list of the diagnostic requests that resulted in this imaging study being performed.

            ShortRequest fulfilled
            Control0..*
            TypeReference(CarePlan, ServiceRequest, Appointment, AppointmentResponse, Task)
            Is Modifierfalse
            Summarytrue
            Requirements

            To support grouped procedures (one imaging study supporting multiple ordered procedures, e.g. chest/abdomen/pelvis CT).

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            68. ImagingStudy.referrer
            Definition

            The requesting/referring physician.

            ShortReferring physician
            Control0..1
            TypeReference(Practitioner, PractitionerRole)
            Is Modifierfalse
            Summarytrue
            Alternate NamesReferringPhysiciansName
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            70. ImagingStudy.interpreter
            Definition

            Who read the study and interpreted the images or other content.

            ShortWho interpreted images
            Control0..*
            TypeReference(Practitioner, PractitionerRole)
            Is Modifierfalse
            Summarytrue
            Alternate NamesName of Physician(s) Reading Study
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            72. ImagingStudy.endpoint
            Definition

            The network service providing access (e.g., query, view, or retrieval) for the study. See implementation notes for information about using DICOM endpoints. A study-level endpoint applies to each series in the study, unless overridden by a series-level endpoint with the same Endpoint.connectionType.

            ShortStudy access endpoint
            Comments

            Typical endpoint types include DICOM WADO-RS, which is used to retrieve DICOM instances in native or rendered (e.g., JPG, PNG), formats using a RESTful API; DICOM WADO-URI, which can similarly retrieve native or rendered instances, except using an HTTP query-based approach; DICOM QIDO-RS, which allows RESTful query for DICOM information without retrieving the actual instances; or IHE Invoke Image Display (IID), which provides standard invocation of an imaging web viewer.

            Control0..*
            TypeReference(Endpoint)
            Is Modifierfalse
            Summarytrue
            Requirements

            Access methods for viewing (e.g., IHE’s IID profile) or retrieving (e.g., DICOM’s WADO-URI and WADO-RS) the study or the study’s series or instances. The study-level baseLocation applies to each series in the study, unless overridden in series by a series-level baseLocation of the same type.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            74. ImagingStudy.numberOfSeries
            Definition

            Number of Series in the Study. This value given may be larger than the number of series elements this Resource contains due to resource availability, security, or other factors. This element should be present if any series elements are present.

            ShortNumber of Study Related Series
            Control0..1
            TypeunsignedInt
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Alternate NamesNumberOfStudyRelatedSeries
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            76. ImagingStudy.numberOfInstances
            Definition

            Number of SOP Instances in Study. This value given may be larger than the number of instance elements this resource contains due to resource availability, security, or other factors. This element should be present if any instance elements are present.

            ShortNumber of Study Related Instances
            Control0..1
            TypeunsignedInt
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Alternate NamesNumberOfStudyRelatedInstances
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            78. ImagingStudy.procedureReference
            Definition

            The procedure which this ImagingStudy was part of.

            ShortThe performed Procedure reference
            Control0..1
            TypeReference(Procedure)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            80. ImagingStudy.procedureCode
            Definition

            The code for the performed procedure type.

            ShortThe performed procedure code
            Control0..*
            BindingUnless not suitable, these codes SHALL be taken from http://www.rsna.org/RadLex_Playbook.aspx
            (extensible to http://www.rsna.org/RadLex_Playbook.aspx)

            The performed procedure type.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Alternate NamesProcedureCodeSequence
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            82. ImagingStudy.location
            Definition

            The principal physical location where the ImagingStudy was performed.

            ShortWhere ImagingStudy occurred
            Control0..1
            TypeReference(Location)
            Is Modifierfalse
            Summarytrue
            Requirements

            Ties the event to where the records are likely kept and provides context around the event occurrence (e.g. if it occurred inside or outside a dedicated healthcare setting).

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            84. ImagingStudy.reasonCode
            Definition

            Description of clinical condition indicating why the ImagingStudy was requested.

            ShortWhy the study was requested
            Control0..*
            BindingFor example codes, see ProcedureReasonCodes
            (example to http://hl7.org/fhir/ValueSet/procedure-reason)

            The reason for the study.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            86. ImagingStudy.reasonReference
            Definition

            Indicates another resource whose existence justifies this Study.

            ShortWhy was study performed
            Control0..*
            TypeReference(Condition, Observation, Media, DiagnosticReport, DocumentReference)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            88. ImagingStudy.note
            Definition

            Per the recommended DICOM mapping, this element is derived from the Study Description attribute (0008,1030). Observations or findings about the imaging study should be recorded in another resource, e.g. Observation, and not in this element.

            ShortUser-defined comments
            Control0..*
            TypeAnnotation
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            90. ImagingStudy.description
            Definition

            The Imaging Manager description of the study. Institution-generated description or classification of the Study (component) performed.

            ShortInstitution-generated description
            Control0..1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Alternate NamesStudyDescription
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            92. ImagingStudy.series
            Definition

            Each study has one or more series of images or other content.

            ShortEach study has one or more series of instances
            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            94. ImagingStudy.series.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. ImagingStudy.series.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())
            98. ImagingStudy.series.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())
            100. ImagingStudy.series.uid
            Definition

            The DICOM Series Instance UID for the series.

            ShortDICOM Series Instance UID for the series
            Comments

            See DICOM PS3.3 C.7.3.

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

            DICOM Series Instance UID.

            Alternate NamesSeriesInstanceUID
            Example<br/><b>General</b>:2.16.124.113543.6003.2588828330.45298.17418.2723805630
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            102. ImagingStudy.series.number
            Definition

            The numeric identifier of this series in the study.

            ShortNumeric identifier of this series
            Control0..1
            TypeunsignedInt
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Alternate NamesSeriesNumber
            Example<br/><b>General</b>:3
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            104. ImagingStudy.series.modality
            Definition

            The modality of this series sequence.

            ShortThe modality of the instances in the series
            Control1..1
            BindingUnless not suitable, these codes SHALL be taken from AcquisitionModality .
            (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part16/sect_CID_29.html)

            Type of acquired data in the instance.

            TypeCoding
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Alternate NamesModality
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            106. ImagingStudy.series.description
            Definition

            A description of the series.

            ShortA short human readable summary of the series
            Control0..1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Alternate NamesSeriesDescription
            Example<br/><b>General</b>:CT Surview 180
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            108. ImagingStudy.series.numberOfInstances
            Definition

            Number of SOP Instances in the Study. The value given may be larger than the number of instance elements this resource contains due to resource availability, security, or other factors. This element should be present if any instance elements are present.

            ShortNumber of Series Related Instances
            Control0..1
            TypeunsignedInt
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Alternate NamesNumberOfSeriesRelatedInstances
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            110. ImagingStudy.series.endpoint
            Definition

            The network service providing access (e.g., query, view, or retrieval) for this series. See implementation notes for information about using DICOM endpoints. A series-level endpoint, if present, has precedence over a study-level endpoint with the same Endpoint.connectionType.

            ShortSeries access endpoint
            Comments

            Typical endpoint types include DICOM WADO-RS, which is used to retrieve DICOM instances in native or rendered (e.g., JPG, PNG) formats using a RESTful API; DICOM WADO-URI, which can similarly retrieve native or rendered instances, except using an HTTP query-based approach; and DICOM QIDO-RS, which allows RESTful query for DICOM information without retrieving the actual instances.

            Control0..*
            TypeReference(Endpoint)
            Is Modifierfalse
            Summarytrue
            Requirements

            Access methods for retrieving (e.g., DICOM’s WADO-URI and WADO-RS) the series or the series’ instances. A baseLocation specified at the series level has precedence over a baseLocation of the same type specified at the study level.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            112. ImagingStudy.series.bodySite
            Definition

            The anatomic structures examined. See DICOM Part 16 Annex L (http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_L.html) for DICOM to SNOMED-CT mappings. The bodySite may indicate the laterality of body part imaged; if so, it shall be consistent with any content of ImagingStudy.series.laterality.

            ShortBody part examined
            Control0..1
            BindingFor example codes, see SNOMEDCTBodyStructures
            (example to http://hl7.org/fhir/ValueSet/body-site)

            Codes describing anatomical locations. May include laterality.

            TypeCoding
            Is Modifierfalse
            Summarytrue
            Alternate NamesBodyPartExamined
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            114. ImagingStudy.series.laterality
            Definition

            The laterality of the (possibly paired) anatomic structures examined. E.g., the left knee, both lungs, or unpaired abdomen. If present, shall be consistent with any laterality information indicated in ImagingStudy.series.bodySite.

            ShortBody part laterality
            Control0..1
            BindingFor example codes, see Laterality
            (example to http://hl7.org/fhir/ValueSet/bodysite-laterality)

            Codes describing body site laterality (left, right, etc.).

            TypeCoding
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            116. ImagingStudy.series.specimen
            Definition

            The specimen imaged, e.g., for whole slide imaging of a biopsy.

            ShortSpecimen imaged
            Control0..*
            TypeReference(Specimen)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            118. ImagingStudy.series.started
            Definition

            The date and time the series was started.

            ShortWhen the series started
            Control0..1
            TypedateTime
            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. ImagingStudy.series.performer
            Definition

            Indicates who or what performed the series and how they were involved.

            ShortWho performed the series
            Comments

            If the person who performed the series is not known, their Organization may be recorded. A patient, or related person, may be the performer, e.g. for patient-captured images.

            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

            The performer is recorded at the series level, since each series in a study may be performed by a different performer, at different times, and using different devices. A series may be performed by multiple performers.

            Alternate NamesPerformingPhysicianName, OperatorName
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            122. ImagingStudy.series.performer.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. ImagingStudy.series.performer.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. ImagingStudy.series.performer.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. ImagingStudy.series.performer.function
            Definition

            Distinguishes the type of involvement of the performer in the series.

            ShortType of performance
            Control0..1
            BindingUnless not suitable, these codes SHALL be taken from ImagingStudySeriesPerformerFunction
            (extensible to http://hl7.org/fhir/ValueSet/series-performer-function)

            The type of involvement of the performer.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Requirements

            Allows disambiguation of the types of involvement of different performers.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            130. ImagingStudy.series.performer.actor
            Definition

            Indicates who or what performed the series.

            ShortWho performed the series
            Control1..1
            TypeReference(CH Core Practitioner, CH Core PractitionerRole, CH Core Organization, CareTeam, CH Core Patient, Device, RelatedPerson)
            Is Modifierfalse
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            132. ImagingStudy.series.instance
            Definition

            A single SOP instance within the series, e.g. an image, or presentation state.

            ShortA single SOP instance from the series
            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            134. ImagingStudy.series.instance.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. ImagingStudy.series.instance.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. ImagingStudy.series.instance.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. ImagingStudy.series.instance.uid
            Definition

            The DICOM SOP Instance UID for this image or other DICOM content.

            ShortDICOM SOP Instance UID
            Comments

            See DICOM PS3.3 C.12.1.

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

            DICOM SOP Instance UID.

            Alternate NamesSOPInstanceUID
            Example<br/><b>General</b>:2.16.124.113543.6003.189642796.63084.16748.2599092903
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            142. ImagingStudy.series.instance.sopClass
            Definition

            DICOM instance type.

            ShortDICOM class type
            Control1..1
            BindingUnless not suitable, these codes SHALL be taken from http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1
            (extensible to http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_B.5.html#table_B.5-1)

            The sopClass for the instance.

            TypeCoding
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Alternate NamesSOPClassUID
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            144. ImagingStudy.series.instance.number
            Definition

            The number of instance in the series.

            ShortThe number of this instance in the series
            Control0..1
            TypeunsignedInt
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Alternate NamesInstanceNumber
            Example<br/><b>General</b>:1
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            146. ImagingStudy.series.instance.title
            Definition

            The description of the instance.

            ShortDescription of instance
            Comments

            Particularly for post-acquisition analytic objects, such as SR, presentation states, value mapping, etc.

            Control0..1
            Typestring
            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()))