| Source Element | Usage | Target |
|---|---|---|
| CodeableReference | UseExtension | http://hl7.org/fhir/5.0/StructureDefinition/extension-CodeableReference |
| CodeableReference.id | UseExtensionFromAncestor | - |
| CodeableReference.extension | UseExtensionFromAncestor | - |
| CodeableReference.concept | UseExtensionFromAncestor | - |
| CodeableReference.reference | UseExtensionFromAncestor | - |