description: This cross-version extension represents Composition.url from http://hl7.org/fhir/StructureDefinition/Composition|5.0.0 for use in FHIR R4.
package_name: hl7.fhir.uv.xver-r5.r4.r4
derivation: constraint
name: Ext_R5_Composition_url
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Composition.url'}
    index: 0
  value:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    short: Canonical identifier for this Composition, represented as a URI (globally unique)
    choices: [valueUri]
    index: 2
  valueUri:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    type: uri
    short: Canonical identifier for this Composition, represented as a URI (globally unique)
    choiceOf: value
    index: 3
package_version: 0.0.1-snapshot-2
class: extension
kind: complex-type
url: http://hl7.org/fhir/5.0/StructureDefinition/extension-Composition.url
base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1
version: 0.0.1-snapshot-2
required: [url]