{
  "resourceType" : "DeviceMetric",
  "id" : "example-devicemetric-cgm",
  "meta" : {
    "profile" : ["https://gematik.de/fhir/hddt/StructureDefinition/hddt-sensor-type-and-calibration-status"]
  },
  "type" : {
    "coding" : [{
      "system" : "urn:iso:std:iso:11073:10101",
      "code" : "160212",
      "display" : "MDC_CONC_GLU_ISF"
    }]
  },
  "unit" : {
    "coding" : [{
      "system" : "http://unitsofmeasure.org",
      "code" : "mg/dL",
      "display" : "mg/dL"
    }]
  },
  "source" : {
    "reference" : "Device/example-device-cgm"
  },
  "operationalStatus" : "on",
  "category" : "measurement",
  "measurementPeriod" : {
    "repeat" : {
      "frequency" : 1,
      "period" : 1,
      "periodUnit" : "min"
    }
  },
  "calibration" : [{
    "type" : "unspecified",
    "state" : "calibrated"
  }]
}