description: A package (id#ver) that this IG has an internal dependency on. A internal dependency is a package that is required to validate the resources in the IG itself but that is not required by the implementers of the IG package_name: hl7.fhir.uv.tools.r5 derivation: constraint name: IGInternalDependency type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/tools/StructureDefinition/ig-internal-dependency'} index: 1 value: choices: [valueCode] index: 3 valueCode: {type: code, choiceOf: value, index: 4} package_version: 0.4.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/tools/StructureDefinition/ig-internal-dependency base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.4.0 required: [valueCode, value]