description: The effective dates for the parent element. package_name: fhir.ca derivation: constraint name: BusinessPeriodExtension type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hlth.gov.bc.ca/fhir/client/StructureDefinition/bc-business-period-extension'} index: 1 value: choices: [valuePeriod] index: 3 valuePeriod: {type: Period, choiceOf: value, index: 4} package_version: bc.client-1.0.1 extensions: {} class: extension kind: complex-type url: http://hlth.gov.bc.ca/fhir/client/StructureDefinition/bc-business-period-extension base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0