{

"resourceType": "Observation",
"id": "gcs-qa",
"status": "final",
"code": {
  "coding": [
    {
      "system": "http://loinc.org",
      "code": "9269-2",
      "display": "Glasgow coma score total"
    }
  ],
  "text": "Glasgow Coma Scale , (GCS)"
},
"subject": {
  "reference": "Patient/example",
  "display": "Peter James Chalmers"
},
"effectiveDateTime": "2014-12-11T04:44:16Z",
"valueQuantity": {
  "value": 13,
  "system": "http://unitsofmeasure.org",
  "code": "{score}"
},
"referenceRange": [
  {
    "high": {
      "value": 8,
      "system": "http://unitsofmeasure.org",
      "code": "{score}"
    },
    "type": {
      "text": "Severe TBI"
    }
  },
  {
    "low": {
      "value": 9,
      "system": "http://unitsofmeasure.org",
      "code": "{score}"
    },
    "high": {
      "value": 12,
      "system": "http://unitsofmeasure.org",
      "code": "{score}"
    },
    "type": {
      "text": "Moderate TBI"
    }
  },
  {
    "low": {
      "value": 13,
      "system": "http://unitsofmeasure.org",
      "code": "{score}"
    },
    "type": {
      "text": "Mild TBI"
    }
  }
],
"derivedFrom": [
  {
    "reference": "QuestionnaireResponse/gcs",
    "display": "GCS form results"
  }
],
"meta": {
  "tag": [
    {
      "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
      "code": "HTEST",
      "display": "test health data"
    }
  ]
}

}