{
  "resourceType": "Observation",
  "id": "631",
  "meta": {
    "profile": [
      "http://devices.fhir.org/StructureDefinition/EnumerationObservation"
    ]
  },
  "status": "final",
  "code": {
    "coding": [
      {
        "system": "urn:iso:std:iso:11073:10101",
        "code": "184327",
        "display": "MDC_ECG_STAT_RHY"
      }
    ]
  },
  "subject": {
    "reference": "Patient/371"
  },
  "effectiveDateTime": "2017-06-02T09:04:44+00:00",
  "valueCodeableConcept": {
    "coding": [
      {
        "system": "urn:iso:std:iso:11073:10101",
        "code": "147474",
        "display": "MDC_ECG_SINUS_RHY"
      }
    ],
    "text": "Sinus rhythm"
  },
  "device": {
    "reference": "DeviceMetric/221"
  }
}