{
    "resourceType": "Observation",
    "id": "ncdhc-observation-fetal-gestational-age-at-ultrasound-example",
    "meta": {
        "versionId": "1",
        "lastUpdated": "2019-10-27T16:13:03Z",
        "profile": ["http://hl7.org.au/fhir/ch/v1/StructureDefinition/ncdhc-observation-fetal-gestational-age-at-ultrasound"]
    },
    "status": "final",
    "code": {
        "coding": [{
            "system": "http://snomed.info/sct",
            "code": "57036006",
            "display": "Fetal gestational age"
        }],
        "text": "Fetal gestational age"
    },
    "subject": {
        "reference": "Patient/patient-baby-example",
        "display": "Baby of Eve Bill"
    },
    "effectiveDateTime": "2019-08-27T16:13:03Z",
    "performer": [
        {
            "reference": "Practitioner/examiner-practitioner",
            "display": "Examiner"
        },
        {
            "reference": "Organization/examiner-organization",
            "display": "Organisation"
        }
    ],
    "valueQuantity": {
        "value": 257,
        "unit": "days",
        "system": "http://unitsofmeasure.org",
        "code": "d"
    }
}