{ "description": null, "_filename": "MiddleName.StructureDefinition.json", "package_name": "implementation.guide.nhdr", "date": null, "derivation": "constraint", "publisher": null, "fhirVersion": "4.0.1", "name": "MiddleName", "abstract": false, "type": "Extension", "experimental": null, "resourceType": "StructureDefinition", "title": null, "package_version": "1.0.0", "status": "draft", "id": "4ae59dd1-3a89-4100-9c7f-60dfd5689110", "kind": "complex-type", "url": "https://example.org/fhir/StructureDefinition/MiddleName", "context": [ { "type": "element", "expression": "Patient.name" } ], "version": null, "differential": { "element": [ { "id": "Extension.url", "path": "Extension.url", "fixedUri": "https://example.org/fhir/StructureDefinition/MiddleName" }, { "id": "Extension.value[x]", "path": "Extension.value[x]", "type": [ { "code": "string" } ] } ] }, "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension" }