description: A reference to a canonical resource.
package_name: hl7.fhir.uv.extensions
derivation: constraint
name: ArtifactCanonicalReference
type: Extension
elements:
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/artifact-canonicalReference'}
    index: 0
  value:
    choices: [valueCanonical]
    index: 2
  valueCanonical: {type: canonical, choiceOf: value, index: 3}
package_version: 5.2.0-ballot
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/artifact-canonicalReference
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.2.0-ballot
required: [valueCanonical, value]