description: null
package_name: hl7.fhir.fr.core
derivation: constraint
name: FRCoreUsePeriodExtension
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'https://hl7.fr/ig/fhir/core/StructureDefinition/fr-core-use-period'}
    index: 1
  value:
    choices: [valuePeriod]
    index: 3
  valuePeriod: {type: Period, choiceOf: value, index: 4}
package_version: 2.1.0-ballot
extensions: {}
class: extension
kind: complex-type
url: https://hl7.fr/ig/fhir/core/StructureDefinition/fr-core-use-period
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 2.1.0-ballot