Extensions for Using Data Elements from FHIR R5 in FHIR R4
0.1.0 - STU International flag

Extensions for Using Data Elements from FHIR R5 in FHIR R4 - Downloaded Version null See the Directory of published versions

Extension: ExtensionDiagnosticReport_SupportingInfo - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 0

Definitions for the ext-R5-DiagnosticReport.supportingInfo extension.

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

0. Extension
Definition

R5: DiagnosticReport.supportingInfo (new:BackboneElement)


Optional Extension Element - found in all resources.

ShortR5: Additional information supporting the diagnostic report (new)Optional Extensions Element
Comments

Element DiagnosticReport.supportingInfo has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo has no mapping targets in FHIR R4. 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() or (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() or (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. 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.

Control20..*
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())
ele-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.extension:type
    Slice Nametype
    Definition

    R5: DiagnosticReport.supportingInfo.type (new:CodeableConcept)

    ShortR5: Supporting information role code (new)Additional content defined by implementations
    Comments

    Element DiagnosticReport.supportingInfo.type is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.type has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.type has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

    Control10..1*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Requirements

    Element DiagnosticReport.supportingInfo.type is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.type has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.type has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

    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())
    ele-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. 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
    Is Modifierfalse
    XML FormatIn the XML format, this property is represented as an attribute.
    Summaryfalse
    Fixed Valuetype
    8. Extension.extension:type.value[x]
    Definition

    The code value for the role of the supporting information in the diagnostic report.


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

    ShortSupporting information role codeValue of extension
    Control10..1
    BindingFor example codes, see For codes, see R5V20936ForR4 (0.1.0)
    (example to http://hl7.org/fhir/uv/xver/ValueSet/R5-v2-0936-for-R4|0.1.0)

    The code value for the role of the supporting information in the diagnostic report.

    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] NoteSeeChoice of Data Typesfor 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()))
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Extension.extension:reference
    Slice Namereference
    Definition

    R5: DiagnosticReport.supportingInfo.reference (new:Reference(Procedure,Observation,DiagnosticReport,Citation))

    ShortR5: Supporting information reference (new)Additional content defined by implementations
    Comments

    Element DiagnosticReport.supportingInfo.reference is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.reference has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.reference has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

    Control10..1*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Requirements

    Element DiagnosticReport.supportingInfo.reference is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.reference has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.reference has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

    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())
    ele-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())
    12. Extension.extension:reference.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 Valuereference
    14. Extension.extension:reference.value[x]
    Definition

    The reference for the supporting information in the diagnostic report.


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

    ShortSupporting information referenceValue of extension
    Control10..1
    TypeReference(Cross-version Profile for R5.Procedure for use in FHIR R4, Procedure, Cross-version Profile for R5.Observation for use in FHIR R4, Observation, Cross-version Profile for R5.DiagnosticReport for use in FHIR R4, DiagnosticReport, Cross-version Profile for R5.Citation for use in FHIR R4, Basic), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
    [x] NoteSeeChoice of Data Typesfor 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()))
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    16. 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://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.supportingInfo
    18. 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
    Control0..01
    TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
    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()))
    ele-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 foundhere

    0. Extension
    Definition

    R5: DiagnosticReport.supportingInfo (new:BackboneElement)

    ShortR5: Additional information supporting the diagnostic report (new)
    Comments

    Element DiagnosticReport.supportingInfo has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

    Control0..*
    Is Modifierfalse
    2. Extension.extension
    Control2..*
    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

      R5: DiagnosticReport.supportingInfo.type (new:CodeableConcept)

      ShortR5: Supporting information role code (new)
      Comments

      Element DiagnosticReport.supportingInfo.type is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.type has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.type has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

      Control1..1
      Requirements

      Element DiagnosticReport.supportingInfo.type is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.type has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.type has no mapping targets in FHIR R4. 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

      The code value for the role of the supporting information in the diagnostic report.

      ShortSupporting information role code
      Control1..1
      BindingFor example codes, see R5V20936ForR4 (0.1.0)
      (example to http://hl7.org/fhir/uv/xver/ValueSet/R5-v2-0936-for-R4|0.1.0)

      The code value for the role of the supporting information in the diagnostic report.

      TypeCodeableConcept
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      10. Extension.extension:reference
      Slice Namereference
      Definition

      R5: DiagnosticReport.supportingInfo.reference (new:Reference(Procedure,Observation,DiagnosticReport,Citation))

      ShortR5: Supporting information reference (new)
      Comments

      Element DiagnosticReport.supportingInfo.reference is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.reference has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.reference has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

      Control1..1
      Requirements

      Element DiagnosticReport.supportingInfo.reference is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.reference has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.reference has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

      12. Extension.extension:reference.url
      Control1..1
      Fixed Valuereference
      14. Extension.extension:reference.value[x]
      Definition

      The reference for the supporting information in the diagnostic report.

      ShortSupporting information reference
      Control1..1
      TypeReference(Cross-version Profile for R5.Procedure for use in FHIR R4, Procedure, Cross-version Profile for R5.Observation for use in FHIR R4, Observation, Cross-version Profile for R5.DiagnosticReport for use in FHIR R4, DiagnosticReport, Cross-version Profile for R5.Citation for use in FHIR R4, Basic)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      16. Extension.url
      Control1..1
      Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.supportingInfo
      18. Extension.value[x]
      Control0..0

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

      0. Extension
      Definition

      R5: DiagnosticReport.supportingInfo (new:BackboneElement)

      ShortR5: Additional information supporting the diagnostic report (new)
      Comments

      Element DiagnosticReport.supportingInfo has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo has no mapping targets in FHIR R4. 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() 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
      Control2..*
      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.extension:type
        Slice Nametype
        Definition

        R5: DiagnosticReport.supportingInfo.type (new:CodeableConcept)

        ShortR5: Supporting information role code (new)
        Comments

        Element DiagnosticReport.supportingInfo.type is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.type has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.type has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

        Control1..1
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Requirements

        Element DiagnosticReport.supportingInfo.type is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.type has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.type has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

        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())
        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.

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        10. Extension.extension:type.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.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
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed Valuetype
          14. Extension.extension:type.value[x]
          Definition

          The code value for the role of the supporting information in the diagnostic report.

          ShortSupporting information role code
          Control1..1
          BindingFor example codes, see R5V20936ForR4 (0.1.0)
          (example to http://hl7.org/fhir/uv/xver/ValueSet/R5-v2-0936-for-R4|0.1.0)

          The code value for the role of the supporting information in the diagnostic report.

          TypeCodeableConcept
          [x] NoteSeeChoice of Data Typesfor 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()))
          16. Extension.extension:reference
          Slice Namereference
          Definition

          R5: DiagnosticReport.supportingInfo.reference (new:Reference(Procedure,Observation,DiagnosticReport,Citation))

          ShortR5: Supporting information reference (new)
          Comments

          Element DiagnosticReport.supportingInfo.reference is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.reference has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.reference has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

          Control1..1
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Requirements

          Element DiagnosticReport.supportingInfo.reference is part of an existing definition because parent element DiagnosticReport.supportingInfo requires a cross-version extension. Element DiagnosticReport.supportingInfo.reference has a context of DiagnosticReport based on following the parent source element upwards and mapping to DiagnosticReport. Element DiagnosticReport.supportingInfo.reference has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).

          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. Extension.extension:reference.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
          20. Extension.extension:reference.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.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 22. Extension.extension:reference.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 Valuereference
            24. Extension.extension:reference.value[x]
            Definition

            The reference for the supporting information in the diagnostic report.

            ShortSupporting information reference
            Control1..1
            TypeReference(Cross-version Profile for R5.Procedure for use in FHIR R4, Procedure, Cross-version Profile for R5.Observation for use in FHIR R4, Observation, Cross-version Profile for R5.DiagnosticReport for use in FHIR R4, DiagnosticReport, Cross-version Profile for R5.Citation for use in FHIR R4, Basic)
            [x] NoteSeeChoice of Data Typesfor 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()))
            26. 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://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.supportingInfo
            28. 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
            Control0..0
            TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
            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()))