description: Date represented as a string. This extension is used to capture date information in a string format when a date must be encrypted. package_name: hl7.fhir.be.referral derivation: constraint name: BeStringDate type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'https://www.ehealth.fgov.be/standards/fhir/referral/StructureDefinition/be-ext-string-date'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 1.0.0 extensions: {} class: extension kind: complex-type url: https://www.ehealth.fgov.be/standards/fhir/referral/StructureDefinition/be-ext-string-date base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [valueString, value]