description: An extension to define whether the Date Period is 'Legal' or 'Operational'. package_name: NHSD.Assets.STU3 derivation: constraint name: Extension-ODSAPI-DateType-1 type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.nhs.uk/STU3/StructureDefinition/Extension-ODSAPI-DateType-1'} index: 0 valueString: type: string short: Whether the Date Period is 'Legal' or 'Operational'. index: 1 slicing: slices: valueString: match: {} schema: {type: string, short: Whether the Date Period is 'Legal' or 'Operational'., _required: true, index: 1} min: 1 package_version: 1.0.0 class: extension kind: complex-type url: https://fhir.nhs.uk/STU3/StructureDefinition/Extension-ODSAPI-DateType-1 base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [valueString]