{
  "resourceType": "Observation",
  "id": "eye-color",
  "status": "final",
  "code": {
    "text": "eye color"
  },
  "subject": {
    "reference": "Patient/example"
  },
  "effectiveDateTime": "2016-05-18",
  "valueString": "blue",
  "meta": {
    "tag": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code": "HTEST",
        "display": "test health data"
      }
    ]
  }
}