description: Extension of type Period on CodeableConcept type package_name: ans.annuaire.fhir.r4 derivation: constraint name: CodeableConceptPeriod type: Extension elements: url: pattern: {type: Uri, value: 'https://apifhir.annuaire.sante.fr/ws-sync/exposed/structuredefinition/codeableConcept-period'} index: 0 value: choices: [valuePeriod] index: 2 valuePeriod: {type: Period, choiceOf: value, index: 3} package_version: 0.2.0-pat23 class: extension kind: complex-type url: https://apifhir.annuaire.sante.fr/ws-sync/exposed/structuredefinition/codeableConcept-period base: http://hl7.org/fhir/StructureDefinition/Extension version: '1.0'