CH Core (R4)
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This page is part of the CH Core (R4) (v5.0.0-ballot: STU 5 Ballot 1) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Extension: ECH46InternetCategory - Detailed Descriptions

Active as of 2024-05-16

Definitions for the ch-ext-ech-46-internetcategory extension.

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

0. Extension
2. Extension.extension
Control0..0
4. Extension.url
Fixed Valuehttp://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-46-internetcategory
6. Extension.value[x]
Control1..?
[x] NoteSee Choice of Data Types for further information about how to use [x]
SlicingThis element introduces a set of slices on Extension.value[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • type @ $this
  • 8. Extension.value[x]:valueCodeableConcept
    Slice NamevalueCodeableConcept
    Control1..1
    BindingUnless not suitable, these codes SHALL be taken from eCH-0046 Internet Category
    (extensible to http://fhir.ch/ig/ch-core/ValueSet/ech-46-internetcategory)
    TypeCodeableConcept
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    10. Extension.value[x]:valueCodeableConcept.coding
    ShortPredefined category
    12. Extension.value[x]:valueCodeableConcept.text
    ShortCategory as free text should only be used if none of the predefined categories apply

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

    0. Extension
    Definition

    Optional Extension Element - found in all resources.

    ShortOptional Extensions Element
    Control0..*
    This element is affected by the following invariants: ele-1
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    2. Extension.extension
    Definition

    An Extension


    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.

    ShortExtensionAdditional content defined by implementations
    Comments

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

    Control0..0*
    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 Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 4. Extension.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuehttp://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-46-internetcategory
      6. Extension.value[x]
      Definition

      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortValue of extension
      Control10..1
      TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSee Choice of Data Types for further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      SlicingThis element introduces a set of slices on Extension.value[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
      • type @ $this
      • 8. Extension.value[x]:valueCodeableConcept
        Slice NamevalueCodeableConcept
        Definition

        Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

        ShortValue of extension
        Control10..1
        BindingUnless not suitable, these codes SHALL be taken from For codes, see eCH-0046 Internet Category
        (extensible to http://fhir.ch/ig/ch-core/ValueSet/ech-46-internetcategory)
        TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
        [x] NoteSee Choice of Data Types for further information about how to use [x]
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        10. Extension.value[x]:valueCodeableConcept.coding
        Definition

        A reference to a code defined by a terminology system.

        ShortPredefined categoryCode defined by a terminology system
        Comments

        Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

        Control0..*
        TypeCoding
        Is Modifierfalse
        Summarytrue
        Requirements

        Allows for alternative encodings within a code system, and translations to other code systems.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        12. Extension.value[x]:valueCodeableConcept.text
        Definition

        A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

        ShortCategory as free text should only be used if none of the predefined categories applyPlain text representation of the concept
        Comments

        Very often the text is the same as a displayName of one of the codings.

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

        The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

        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. Extension
        Definition

        Optional Extension Element - found in all resources.

        ShortOptional Extensions Element
        Control0..*
        This element is affected by the following invariants: ele-1
        Is Modifierfalse
        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())
        2. Extension.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
        4. Extension.extension
        Definition

        An Extension

        ShortExtension
        Control0..0
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 6. Extension.url
          Definition

          Source of the definition for the extension code - a logical name or a URL.

          Shortidentifies the meaning of the extension
          Comments

          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed Valuehttp://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-46-internetcategory
          8. Extension.value[x]
          Definition

          Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

          ShortValue of extension
          Control1..1
          TypeCodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          SlicingThis element introduces a set of slices on Extension.value[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
          • type @ $this
          • 10. Extension.value[x]:valueCodeableConcept
            Slice NamevalueCodeableConcept
            Definition

            Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

            ShortValue of extension
            Control1..1
            BindingUnless not suitable, these codes SHALL be taken from eCH-0046 Internet Category
            (extensible to http://fhir.ch/ig/ch-core/ValueSet/ech-46-internetcategory)
            TypeCodeableConcept
            [x] NoteSee Choice of Data Types for further information about how to use [x]
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            12. Extension.value[x]:valueCodeableConcept.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
            14. Extension.value[x]:valueCodeableConcept.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 Extension.value[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 16. Extension.value[x]:valueCodeableConcept.coding
              Definition

              A reference to a code defined by a terminology system.

              ShortPredefined category
              Comments

              Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

              Control0..*
              TypeCoding
              Is Modifierfalse
              Summarytrue
              Requirements

              Allows for alternative encodings within a code system, and translations to other code systems.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              18. Extension.value[x]:valueCodeableConcept.text
              Definition

              A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

              ShortCategory as free text should only be used if none of the predefined categories apply
              Comments

              Very often the text is the same as a displayName of one of the codings.

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

              The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

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