description: This specifies the fullUrl for the resource in parameters.resource, if there is one. When fullUrl is provided, ithe [resource resolution method described for Bundle](bundle.html#references). package_name: hl7.fhir.r5.examples derivation: constraint name: fullUrl type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/parameters-fullUrl'} index: 1 value: choices: [valueUri] index: 3 valueUri: {type: uri, choiceOf: value, index: 4} package_version: 5.0.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/parameters-fullUrl base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-ballot required: [valueUri, value]