description: Represents a wet or electronic signature for either the form overall or for the question or item it's associated with. package_name: hl7.fhir.uv.extensions.r4b derivation: constraint name: QRSignature type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/questionnaireresponse-signature'} index: 1 value: choices: [valueSignature] index: 3 valueSignature: {type: Signature, choiceOf: value, index: 4} package_version: 5.3.0-ballot-tc extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/questionnaireresponse-signature base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot-tc required: [valueSignature, value]