{
  "resourceType": "Observation",
  "id": "a71986cf-ba26-4bc9-a29d-6fe18878f670",
  "meta": {
    "versionId": "1",
    "lastUpdated": "2016-12-16T14:32:58.125+00:00"
  },
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">1953-10-27: Gestational age at birth = 43.4 weeks</div>"
  },
  "status": "final",
  "category": {
    "coding": [
      {
        "system": "http://hl7.org/fhir/observation-category",
        "code": "exam",
        "display": "Exam"
      }
    ],
    "text": "Exam"
  },
  "code": {
    "coding": [
      {
        "system": "http://loinc.org/",
        "code": "18185-9",
        "display": "Gestational age at birth"
      }
    ],
    "text": "Gestational age at birth"
  },
  "subject": {
    "reference": "Patient/1098667"
  },
  "effectiveDateTime": "1953-10-27",
  "valueQuantity": {
    "value": 43.4,
    "unit": "weeks",
    "system": "http://unitsofmeasure.org/",
    "code": "wk"
  }
}