IP DeviceMetric Example

{
    "resourceType": "DeviceMetric",
    "id": "ip-devicemetric-1",
    "identifier": {
        "system": "http://roche.com/fhir/rdc/sid/devicemetric-identifier",
        "value": "67866001"
    },
    "type": {
        "coding":  [
            {
                "system": "http://snomed.info/sct",
                "code": "67866001",
                "display": "Insulin (substance)"
            }
        ]
    },
    "unit": {
        "coding":  [
            {
                "system": "http://unitsofmeasure.org",
                "code": "[iU]",
                "display": "international unit"
            }
        ]
    },
    "source": {
        "reference": "Device/ip-device-1"
    },
    "parent": {
        "reference": "DeviceComponent/ip-devicecomponent-1"
    },
    "operationalStatus": "on",
    "category": "measurement"
}