description: Indicates that a Patient contact or RelatedPerson SHALL be copied in to Patient correspondence. package_name: fhir.r4.ukcore.stu3.currentbuild derivation: constraint name: ExtensionUKCoreCopyCorrespondenceIndicator type: Extension elements: url: pattern: {type: uri, value: 'https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CopyCorrespondenceIndicator'} type: uri index: 0 value: short: Copy Correspondence Indicator choices: [valueBoolean] index: 2 valueBoolean: {type: boolean, short: Copy Correspondence Indicator, choiceOf: value, index: 3} package_version: 0.0.19-pre-release class: extension kind: complex-type url: https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CopyCorrespondenceIndicator base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.2.0 required: [value, valueBoolean]