{
  "resourceType": "StructureDefinition",
  "id": "5b1f6d97-5503-4e93-a3c7-3bb90c02d895",
  "meta": {
    "lastUpdated": "2017-10-15T07:54:00.331+00:00"
  },
  "url": "http://hl7.org/fhir/StructureDefinition/MyExtension",
  "name": "MyExtension",
  "status": "draft",
  "date": "2017-10-12T20:21:37.075+00:00",
  "fhirVersion": "3.0.1",
  "kind": "primitive-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "Patient"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.id",
        "path": "Extension.id",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "comment": "Note that FHIR strings may not exceed 1MB in size"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/MyExtension"
      }
    ]
  }
}