<Observation xmlns="http://hl7.org/fhir">
  <id value="622" />
  <meta>
    <profile value="http://devices.fhir.org/StructureDefinition/NumericObservation" />
  </meta>
  <status value="final" />
  <category>
    <coding>
      <system value="http://hl7.org/fhir/observation-category" />
      <code value="vital-signs" />
      <display value="Vital Signs" />
    </coding>
  </category>
  <code>
    <coding>
      <system value="http://loinc.org" />
      <code value="8867-4" />
      <display value="Heart rate" />
    </coding>
    <coding>
      <system value="urn:iso:std:iso:11073:10101" />
      <code value="147842" />
      <display value="MDC_ECG_CARD_BEAT_RATE" />
    </coding>
  </code>
  <subject>
    <reference value="Patient/371" />
  </subject>
  <effectiveDateTime value="2017-06-02T11:04:46+02:00" />
  <valueQuantity>
    <value value="60" />
    <unit value="bpm" />
    <system value="http://unitsofmeasure.org" />
    <code value="/min" />
  </valueQuantity>
  <device>
    <reference value="DeviceMetric/215" />
  </device>
</Observation>