Extensions for Using Data Elements from FHIR R4 in FHIR STU3
0.1.0 - STU International flag

Extensions for Using Data Elements from FHIR R4 in FHIR STU3 - Downloaded Version null See the Directory of published versions

Extension: ExtensionSubstanceReferenceInformation_GeneElement - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 0

Definitions for the ext-R4-SubstanceReferenceInformation.geneElement extension.

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

0. Extension
Definition

R4: SubstanceReferenceInformation.geneElement (new:BackboneElement)


Optional Extension Element - found in all resources.

ShortR4: Todo (new)Optional Extensions Element
Comments

Element SubstanceReferenceInformation.geneElement is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new 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() | (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ele-1: All FHIR elements must have a @value or children (hasValue() | (children().count() > id.count()))
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. In order 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.

ShortExtensionAdditional Content defined by implementations
Comments

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

Control0..*
TypeExtension
Alternate Namesextensions, user content
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.extension:type
    Slice Nametype
    Definition

    R4: SubstanceReferenceInformation.geneElement.type (new:CodeableConcept)

    ShortR4: Todo (new)Additional Content defined by implementations
    Comments

    Element SubstanceReferenceInformation.geneElement.type is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.type is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.type has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

    Control0..1*
    TypeExtension
    Requirements

    Element SubstanceReferenceInformation.geneElement.type is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.type is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.type has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

    6. Extension.extension:type.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
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    XML FormatIn the XML format, this property is represented as an attribute.
    Fixed Valuetype
    8. Extension.extension:type.value[x]
    Definition

    Todo.


    Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

    ShortTodoValue of extension
    Control0..1
    TypeCodeableConcept, date, dateTime, Meta, code, string, Address, Attachment, integer, oid, Count, instant, ContactPoint, HumanName, Money, Identifier, Coding, markdown, SampledData, Ratio, id, positiveInt, Age, Distance, Reference, Period, Quantity, Duration, Range, uri, Annotation, boolean, base64Binary, Signature, unsignedInt, time, Timing, decimal
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    10. Extension.extension:element
    Slice Nameelement
    Definition

    R4: SubstanceReferenceInformation.geneElement.element (new:Identifier)

    ShortR4: Todo (new)Additional Content defined by implementations
    Comments

    Element SubstanceReferenceInformation.geneElement.element is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.element is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.element has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

    Control0..1*
    TypeExtension
    Requirements

    Element SubstanceReferenceInformation.geneElement.element is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.element is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.element has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

    12. Extension.extension:element.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
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    XML FormatIn the XML format, this property is represented as an attribute.
    Fixed Valueelement
    14. Extension.extension:element.value[x]
    Definition

    Todo.


    Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

    ShortTodoValue of extension
    Control0..1
    TypeIdentifier, date, dateTime, Meta, code, string, Address, Attachment, integer, oid, Count, instant, ContactPoint, HumanName, Money, Coding, markdown, SampledData, Ratio, id, positiveInt, Age, Distance, Reference, Period, Quantity, Duration, Range, uri, Annotation, boolean, base64Binary, Signature, unsignedInt, time, Timing, decimal, CodeableConcept
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    16. Extension.extension:source
    Slice Namesource
    Definition

    R4: SubstanceReferenceInformation.geneElement.source (new:Reference(DocumentReference))

    ShortR4: Todo (new)Additional Content defined by implementations
    Comments

    Element SubstanceReferenceInformation.geneElement.source is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.source is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.source has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

    Control0..*
    TypeExtension
    Requirements

    Element SubstanceReferenceInformation.geneElement.source is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.source is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.source has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

    18. Extension.extension:source.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
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    XML FormatIn the XML format, this property is represented as an attribute.
    Fixed Valuesource
    20. Extension.extension:source.value[x]
    Definition

    Todo.


    Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

    ShortTodoValue of extension
    Control0..1
    TypeReference(Cross-version Profile for R4.DocumentReference for use in FHIR STU3, DocumentReference), date, dateTime, Meta, code, string, Address, Attachment, integer, oid, Count, instant, ContactPoint, HumanName, Money, Identifier, Coding, markdown, SampledData, Ratio, id, positiveInt, Age, Distance, Period, Quantity, Duration, Range, uri, Annotation, boolean, base64Binary, Signature, unsignedInt, time, Timing, decimal, CodeableConcept
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    22. 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
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    XML FormatIn the XML format, this property is represented as an attribute.
    Fixed Valuehttp://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceReferenceInformation.geneElement
    24. Extension.value[x]
    Definition

    Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

    ShortValue of extension
    Control0..01
    TypeChoice of: base64Binary, boolean, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, Meta
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension

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

    0. Extension
    Definition

    R4: SubstanceReferenceInformation.geneElement (new:BackboneElement)

    ShortR4: Todo (new)
    Comments

    Element SubstanceReferenceInformation.geneElement is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

    Control0..*
    Is Modifierfalse
    2. Extension.extension
    Control0..*
    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.extension:type
      Slice Nametype
      Definition

      R4: SubstanceReferenceInformation.geneElement.type (new:CodeableConcept)

      ShortR4: Todo (new)
      Comments

      Element SubstanceReferenceInformation.geneElement.type is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.type is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.type has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

      Control0..1
      Requirements

      Element SubstanceReferenceInformation.geneElement.type is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.type is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.type has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

      6. Extension.extension:type.url
      Control1..1
      Fixed Valuetype
      8. Extension.extension:type.value[x]
      Definition

      Todo.

      ShortTodo
      Control0..1
      TypeCodeableConcept
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      10. Extension.extension:element
      Slice Nameelement
      Definition

      R4: SubstanceReferenceInformation.geneElement.element (new:Identifier)

      ShortR4: Todo (new)
      Comments

      Element SubstanceReferenceInformation.geneElement.element is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.element is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.element has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

      Control0..1
      Requirements

      Element SubstanceReferenceInformation.geneElement.element is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.element is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.element has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

      12. Extension.extension:element.url
      Control1..1
      Fixed Valueelement
      14. Extension.extension:element.value[x]
      Definition

      Todo.

      ShortTodo
      Control0..1
      TypeIdentifier
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      16. Extension.extension:source
      Slice Namesource
      Definition

      R4: SubstanceReferenceInformation.geneElement.source (new:Reference(DocumentReference))

      ShortR4: Todo (new)
      Comments

      Element SubstanceReferenceInformation.geneElement.source is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.source is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.source has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

      Control0..*
      Requirements

      Element SubstanceReferenceInformation.geneElement.source is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.source is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.source has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

      18. Extension.extension:source.url
      Control1..1
      Fixed Valuesource
      20. Extension.extension:source.value[x]
      Definition

      Todo.

      ShortTodo
      Control0..1
      TypeReference(Cross-version Profile for R4.DocumentReference for use in FHIR STU3, DocumentReference)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      22. Extension.url
      Control1..1
      Fixed Valuehttp://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceReferenceInformation.geneElement
      24. Extension.value[x]
      Control0..0

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

      0. Extension
      Definition

      R4: SubstanceReferenceInformation.geneElement (new:BackboneElement)

      ShortR4: Todo (new)
      Comments

      Element SubstanceReferenceInformation.geneElement is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new 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() | (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.

      Shortxml:id (or equivalent in JSON)
      Control0..1
      Typestring
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      XML FormatIn the XML format, this property is represented as an attribute.
      4. Extension.extension
      Definition

      An Extension

      ShortExtension
      Control0..*
      TypeExtension
      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.extension:type
        Slice Nametype
        Definition

        R4: SubstanceReferenceInformation.geneElement.type (new:CodeableConcept)

        ShortR4: Todo (new)
        Comments

        Element SubstanceReferenceInformation.geneElement.type is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.type is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.type has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

        Control0..1
        TypeExtension
        Requirements

        Element SubstanceReferenceInformation.geneElement.type is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.type is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.type has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

        8. Extension.extension:type.id
        Definition

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

        Shortxml:id (or equivalent in JSON)
        Control0..1
        Typestring
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        XML FormatIn the XML format, this property is represented as an attribute.
        10. Extension.extension:type.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. In order 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.

        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
        Alternate Namesextensions, user content
        SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 12. Extension.extension:type.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
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          XML FormatIn the XML format, this property is represented as an attribute.
          Fixed Valuetype
          14. Extension.extension:type.value[x]
          Definition

          Todo.

          ShortTodo
          Control0..1
          TypeCodeableConcept
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          16. Extension.extension:element
          Slice Nameelement
          Definition

          R4: SubstanceReferenceInformation.geneElement.element (new:Identifier)

          ShortR4: Todo (new)
          Comments

          Element SubstanceReferenceInformation.geneElement.element is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.element is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.element has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

          Control0..1
          TypeExtension
          Requirements

          Element SubstanceReferenceInformation.geneElement.element is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.element is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.element has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

          18. Extension.extension:element.id
          Definition

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

          Shortxml:id (or equivalent in JSON)
          Control0..1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          XML FormatIn the XML format, this property is represented as an attribute.
          20. Extension.extension:element.extension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element. In order 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.

          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
          Alternate Namesextensions, user content
          SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 22. Extension.extension:element.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
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            XML FormatIn the XML format, this property is represented as an attribute.
            Fixed Valueelement
            24. Extension.extension:element.value[x]
            Definition

            Todo.

            ShortTodo
            Control0..1
            TypeIdentifier
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            26. Extension.extension:source
            Slice Namesource
            Definition

            R4: SubstanceReferenceInformation.geneElement.source (new:Reference(DocumentReference))

            ShortR4: Todo (new)
            Comments

            Element SubstanceReferenceInformation.geneElement.source is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.source is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.source has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

            Control0..*
            TypeExtension
            Requirements

            Element SubstanceReferenceInformation.geneElement.source is part of an existing definition because parent element SubstanceReferenceInformation.geneElement requires a cross-version extension. Element SubstanceReferenceInformation.geneElement.source is not mapped to FHIR STU3, since FHIR R4 SubstanceReferenceInformation is not mapped. Element SubstanceReferenceInformation.geneElement.source has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).

            28. Extension.extension:source.id
            Definition

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

            Shortxml:id (or equivalent in JSON)
            Control0..1
            Typestring
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            XML FormatIn the XML format, this property is represented as an attribute.
            30. Extension.extension:source.extension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element. In order 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.

            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
            Alternate Namesextensions, user content
            SlicingThis element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 32. Extension.extension:source.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
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              XML FormatIn the XML format, this property is represented as an attribute.
              Fixed Valuesource
              34. Extension.extension:source.value[x]
              Definition

              Todo.

              ShortTodo
              Control0..1
              TypeReference(Cross-version Profile for R4.DocumentReference for use in FHIR STU3, DocumentReference)
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              36. 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
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              XML FormatIn the XML format, this property is represented as an attribute.
              Fixed Valuehttp://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceReferenceInformation.geneElement
              38. Extension.value[x]
              Definition

              Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

              ShortValue of extension
              Control0..0
              TypeChoice of: base64Binary, boolean, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, Meta
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension