description: null package_name: gdr.lab derivation: constraint name: ReteLabSpecimenBarcodeIdentificativo type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.siss.regione.lombardia.it/StructureDefinition/ReteLabSpecimenBarcodeIdentificativo'} index: 0 value: choices: [valueUnsignedInt] index: 2 valueUnsignedInt: {type: unsignedInt, choiceOf: value, index: 3} package_version: 1.3.5 class: extension kind: complex-type url: https://fhir.siss.regione.lombardia.it/StructureDefinition/ReteLabSpecimenBarcodeIdentificativo base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.3.5