description: The date  (and optionally time) when the artifact was last significantly changed. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the artifact changes.
package_name: hl7.fhir.uv.extensions.r4
derivation: constraint
name: ArtifactDate
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/artifact-date'}
    index: 1
  value:
    choices: [valueDateTime]
    index: 3
  valueDateTime: {type: dateTime, choiceOf: value, index: 4}
package_version: 5.2.0-ballot
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/artifact-date
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.2.0-ballot
required: [valueDateTime, value]