{
  "resourceType": "StructureDefinition",
  "meta": {
    "lastUpdated": "2018-06-21T13:45:59.335+00:00"
  },
  "url": "http://example.org/fhir/StructureDefinition/OptumLabResult",
  "name": "OptumLabResult",
  "status": "draft",
  "date": "2018-06-21T13:45:59.391+00:00",
  "fhirVersion": "3.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://hl7.org/fhir/us/core/StructureDefinition/us-core-observationresults",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation.extension",
        "path": "Observation.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Observation.extension:claimNumber",
        "path": "Observation.extension",
        "sliceName": "claimNumber",
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "http://example.org/fhir/StructureDefinition/ClaimNumber"
          }
        ]
      }
    ]
  }
}