{
  "resourceType": "Observation",
  "id": "91f131e9-e9af-4201-9d67-2c47b78e7122",
  "meta": {
    "versionId": "1",
    "lastUpdated": "2021-03-12T15:55:54.313+00:00",
    "source": "#feL8Ew8ufqQjSZAZ"
  },
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "laboratory",
          "display": "laboratory"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "2039-6",
        "display": "Carcinoembryonic Ag [Mass/volume] in Serum or Plasma"
      }
    ],
    "text": "Carcinoembryonic Ag [Mass/volume] in Serum or Plasma"
  },
  "subject": {
    "reference": "Patient/e0267626-7052-4429-9936-c527097bac9a"
  },
  "encounter": {
    "reference": "Encounter/f787af23-fd2a-44e7-9d72-3949119f6737"
  },
  "effectiveDateTime": "2016-01-15T13:10:31+00:00",
  "issued": "2016-01-15T13:10:31.642+00:00",
  "valueQuantity": {
    "value": 7,
    "unit": "ng/mL",
    "system": "http://unitsofmeasure.org",
    "code": "ng/mL"
  }
}