description: Guidance that a document signing service with selective disclosure support (e.g. SD-JWT) should perform a selective disclosure of the content of the containing node of the extension in the JSON representation of the FHIR instance.\n\nThe code value should be from a code system containing appropriate disclosure statements for the use case. The disclosure statement should describe the content that is to be disclosed at that node. For example a code such as 'disclose-date-of-birth' or 'disclose-vaccine-history'.\n package_name: smart.who.int.trust-phw derivation: constraint name: SelectiveDisclosure type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://smart.who.int/trust-phw/StructureDefinition/SelectiveDisclosure'} index: 1 value: mustSupport: true choices: [valueCode] index: 3 valueCode: {type: code, mustSupport: true, choiceOf: value, index: 4} package_version: 0.1.0 extensions: {} class: extension kind: complex-type url: http://smart.who.int/trust-phw/StructureDefinition/SelectiveDisclosure base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.1.0 required: [valueCode, value]