{
  "resourceType": "Observation",
  "id": "CCO-0125",
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "clinical",
          "display": "Clinical"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "75505-8",
        "display": "Chief complaint"
      }
    ],
    "text": "Chief complaint"
  },
  "subject": {
    "reference": "Patient/PAT-0125"
  },
  "encounter": {
    "reference": "Encounter/ENC-0125"
  },
  "valueString": "Multiple Sclerosis"
}