{
  "resourceType" : "Observation",
  "id" : "observation-vitalsign-headcircum-example",
  "meta" : {
    "versionId" : "1",
    "lastUpdated" : "2018-12-27T16:13:03Z",
    "profile" : [
      "http://hl7.org.au/fhir/ch/v1/StructureDefinition/ncdhc-observation-vitalsign-headcircum"
    ]
  },
  "text" : {
    "status" : "additional",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">Head circumference</div>"
  },
  "status" : "final",
  "category" : [
    {
      "coding" : [
        {
          "system" : "http://hl7.org/fhir/observation-category",
          "code" : "vital-signs",
          "display" : "Vital Signs"
        }
      ],
      "text" : "Vital Signs"
    }
  ],
  "code" : {
    "coding" : [
      {
        "system" : "http://loinc.org",
        "code" : "8287-5"
      },
      {
        "system" : "http://snomed.info/sct",
        "code" : "363812007"
      },
      {
        "system" : "http://snomed.info/sct",
        "code" : "169876006"
      }
    ],
    "text" : "Head Circumference"
  },
  "subject" : {
    "reference" : "Patient/patient-baby-example",
    "display" : "Baby of Eve Bill"
  },
  "effectiveDateTime" : "2018-12-27T16:13:03Z",
  "performer" : [
    {
      "reference" : "Practitioner/examiner-practitioner",
      "display" : "Examiner"
    },
    {
      "reference" : "Organization/examiner-organization",
      "display" : "Organisation"
    }
  ],
  "valueQuantity" : {
    "value" : 35,
    "unit" : "cm",
    "system" : "http://unitsofmeasure.org",
    "code" : "cm"
  }
}