{
  "resourceType": "StructureDefinition",
  "url": "http://example.org/fhir/StructureDefinition/SanDiegoAddress",
  "name": "SanDiegoAddress",
  "status": "draft",
  "date": "2017-09-12T22:49:04.709+00:00",
  "fhirVersion": "3.0.1",
  "kind": "complex-type",
  "abstract": false,
  "type": "Address",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Address",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Address.type",
        "path": "Address.type",
        "fixedCode": "postal"
      },
      {
        "id": "Address.period",
        "path": "Address.period",
        "max": "0"
      }
    ]
  }
}