description: Describes the clinical usage of the artifact. package_name: hl7.fhir.uv.crmi derivation: constraint name: ArtifactUsage type: Extension elements: url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/artifact-usage'} index: 0 value: choices: [valueMarkdown] index: 2 valueMarkdown: {type: markdown, choiceOf: value, index: 3} package_version: 1.0.0-ballot class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/artifact-usage base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0-ballot