FHIR Extensions Pack
5.4.0 - May 2026 International flag

FHIR Extensions Pack, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 5.4.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-extensions/ and changes regularly. See the Directory of published versions

Extension: Package Source

Official URL: http://hl7.org/fhir/StructureDefinition/package-source Version: 5.4.0
Standards status: Trial-use Maturity Level: 1 Computable Name: PackageSource
Other Identifiers: OID:2.16.840.1.113883.4.642.40.97.42.72

Specifies the package (and preferably, package version) in which an artifact (or referenced artifact) is defined.

Context of Use

This extension may be used on the following element(s)

Usage info

Usages:

  • This Extension is not used by any profiles in this Specification

You can also check for usages in the FHIR IG Statistics

Changes since version 5.3.0:

  • One or more text definitions, invariants or bindings have changed (description, Extension)

    • Formal Views of Extension Content

    Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

    This structure is derived from Extension

    Summary

    Complex Extension: Specifies the package (and preferably, package version) in which an artifact (or referenced artifact) is defined.

    • packageId: id: The id of the package in which the artifact is defined
    • version: string: The version of the package in which the artifact is defined
    • uri: uri: The canonical root uri for the package

    Maturity: 1

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: doco
    Extension 0..* Extension What package the artifact is defined in
    Extension.Slices for extension Content/Rules for all slices
    Extension.Slices for extension.extension:packageId 1..1 Extension NPM-style package id
    Extension.Slices for extension.extension:packageId.url 1..1 uri "packageId"
    Extension.Slices for extension.extension:packageId.value[x] 1..1 id Value of extension
    Extension.Slices for extension.extension:version 0..1 Extension Package version
    Extension.Slices for extension.extension:version.url 1..1 uri "version"
    Extension.Slices for extension.extension:version.value[x] 1..1 string Value of extension
    Extension.Slices for extension.extension:uri 0..1 Extension Package uri
    Extension.Slices for extension.extension:uri.url 1..1 uri "uri"
    Extension.Slices for extension.extension:uri.value[x] 1..1 uri Value of extension
    Extension.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/package-source"
    Extension.value[x] 0..0 Value of extension

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraints    Filter: doco
    Extension 0..* Extension What package the artifact is defined in
    Extension.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension 1..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:packageId 1..1 Extension NPM-style package id
    Extension.Slices for extension.extension:packageId.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension.extension:packageId.extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:packageId.url 1..1 uri "packageId"
    Extension.Slices for extension.extension:packageId.value[x] 1..1 id Value of extension
    Extension.Slices for extension.extension:version 0..1 Extension Package version
    Extension.Slices for extension.extension:version.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension.extension:version.extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:version.url 1..1 uri "version"
    Extension.Slices for extension.extension:version.value[x] 1..1 string Value of extension
    Extension.Slices for extension.extension:uri 0..1 Extension Package uri
    Extension.Slices for extension.extension:uri.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension.extension:uri.extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:uri.url 1..1 uri "uri"
    Extension.Slices for extension.extension:uri.value[x] 1..1 uri Value of extension
    Extension.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/package-source"

    doco Documentation for this format

    This structure is derived from Extension

    Summary

    Complex Extension: Specifies the package (and preferably, package version) in which an artifact (or referenced artifact) is defined.

    • packageId: id: The id of the package in which the artifact is defined
    • version: string: The version of the package in which the artifact is defined
    • uri: uri: The canonical root uri for the package

    Maturity: 1

    Differential View

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: doco
    Extension 0..* Extension What package the artifact is defined in
    Extension.Slices for extension Content/Rules for all slices
    Extension.Slices for extension.extension:packageId 1..1 Extension NPM-style package id
    Extension.Slices for extension.extension:packageId.url 1..1 uri "packageId"
    Extension.Slices for extension.extension:packageId.value[x] 1..1 id Value of extension
    Extension.Slices for extension.extension:version 0..1 Extension Package version
    Extension.Slices for extension.extension:version.url 1..1 uri "version"
    Extension.Slices for extension.extension:version.value[x] 1..1 string Value of extension
    Extension.Slices for extension.extension:uri 0..1 Extension Package uri
    Extension.Slices for extension.extension:uri.url 1..1 uri "uri"
    Extension.Slices for extension.extension:uri.value[x] 1..1 uri Value of extension
    Extension.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/package-source"
    Extension.value[x] 0..0 Value of extension

    doco Documentation for this format

    Snapshot View

    NameFlagsCard.TypeDescription & Constraints    Filter: doco
    Extension 0..* Extension What package the artifact is defined in
    Extension.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension 1..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:packageId 1..1 Extension NPM-style package id
    Extension.Slices for extension.extension:packageId.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension.extension:packageId.extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:packageId.url 1..1 uri "packageId"
    Extension.Slices for extension.extension:packageId.value[x] 1..1 id Value of extension
    Extension.Slices for extension.extension:version 0..1 Extension Package version
    Extension.Slices for extension.extension:version.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension.extension:version.extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:version.url 1..1 uri "version"
    Extension.Slices for extension.extension:version.value[x] 1..1 string Value of extension
    Extension.Slices for extension.extension:uri 0..1 Extension Package uri
    Extension.Slices for extension.extension:uri.id 0..1 id Unique id for inter-element referencing
    Extension.Slices for extension.extension:uri.extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    Extension.Slices for extension.extension:uri.url 1..1 uri "uri"
    Extension.Slices for extension.extension:uri.value[x] 1..1 uri Value of extension
    Extension.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/package-source"

    doco Documentation for this format

     

    Other representations of profile: CSV, Excel, Schematron

    Constraints

    Id Grade Path(s) Description Expression
    ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
    ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

    R4B

    The extension is unchanged in R4B

    R4

    The extension is unchanged in R4

    R3

    The extension is unchanged in R3

    Search Parameters for this Extension

    (none found)