description: A formal identifier that is used to identify this {{title}} when it is represented in other formats, or referenced in a specification, model, design or an instance.
package_name: hl7.fhir.r5.core
derivation: constraint
name: identifier
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/artifact-identifier'}
    index: 1
  value:
    choices: [valueIdentifier]
    index: 3
  valueIdentifier: {type: Identifier, choiceOf: value, index: 4}
package_version: 5.0.0-snapshot2
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/artifact-identifier
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.6.0
required: [valueIdentifier, value]