{
  "resourceType": "StructureDefinition",
  "url": "https://example.org/fhir/StructureDefinition/Sex",
  "name": "Sex",
  "status": "draft",
  "useContext": [
    {
      "code": {
        "system": "http://loinc.org",
        "code": "76689-9"
      },
      "valueCodeableConcept": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "76689-9"
          }
        ],
        "text": "Sex"
      }
    }
  ],
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Practitioner"
    },
    {
      "type": "element",
      "expression": "Patient"
    },
    {
      "type": "element",
      "expression": "Person"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "https://example.org/fhir/StructureDefinition/Sex"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "type": [
          {
            "code": "code"
          }
        ]
      }
    ]
  }
}