description: An extension to provide the StartDateTime and EndDateTime of CBB TimeInterval. package_name: healthdata.be.r4.cbb derivation: constraint name: ExtTimeIntervalPeriod type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.healthdata.be/StructureDefinition/ext-TimeInterval.Period'} index: 0 value: choices: [valuePeriod] index: 2 valuePeriod: {type: Period, choiceOf: value, index: 3} package_version: 0.10.0-beta class: extension kind: complex-type url: https://fhir.healthdata.be/StructureDefinition/ext-TimeInterval.Period base: http://hl7.org/fhir/StructureDefinition/Extension version: null