description: Identifies the logical module/software section responsible for identifying the issue package_name: hl7.fhir.uv.extensions derivation: constraint name: OOIssueSource type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/operationoutcome-issue-source'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 5.1.0-ballot1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/operationoutcome-issue-source base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.1.0-ballot1 required: [valueString, value]