Health Device Data Transfer
Version 1.0.0-rc2 - release

Specification of health data transfer from devices to DiGA (§ 374a SGB V)

: HDDT Blood Pressure Value Example - XML Representation

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<Observation xmlns="http://hl7.org/fhir">
  <id value="example-blood-pressure-value"/>
  <meta>
    <profile
             value="https://gematik.de/fhir/hddt/StructureDefinition/hddt-blood-pressure-value"/>
  </meta>
  <status value="final"/>
  <category>
    <coding>
      <system
              value="http://terminology.hl7.org/CodeSystem/observation-category"/>
      <code value="vital-signs"/>
    </coding>
  </category>
  <code>
    <coding>
      <system value="http://loinc.org"/>
      <code value="85354-9"/>
      <display value="Blood pressure panel with all children optional"/>
    </coding>
  </code>
  <subject>🔗 
    <reference value="Patient/patientExample"/>
  </subject>
  <effectiveDateTime value="2025-10-23T09:15:00+02:00"/>
  <interpretation>
    <coding>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation"/>
      <code value="N"/>
      <display value="Normal"/>
    </coding>
  </interpretation>
  <device>🔗 
    <reference value="Device/example-device-blood-pressure-cuff"/>
  </device>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="8480-6"/>
        <display value="Systolic blood pressure"/>
      </coding>
    </code>
    <valueQuantity>
      <value value="120"/>
      <unit value="mm[Hg]"/>
      <system value="http://unitsofmeasure.org"/>
      <code value="mm[Hg]"/>
    </valueQuantity>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="8462-4"/>
        <display value="Diastolic blood pressure"/>
      </coding>
    </code>
    <valueQuantity>
      <value value="80"/>
      <unit value="mm[Hg]"/>
      <system value="http://unitsofmeasure.org"/>
      <code value="mm[Hg]"/>
    </valueQuantity>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="8478-0"/>
        <display value="Mean blood pressure"/>
      </coding>
    </code>
    <valueQuantity>
      <value value="93"/>
      <unit value="mm[Hg]"/>
      <system value="http://unitsofmeasure.org"/>
      <code value="mm[Hg]"/>
    </valueQuantity>
  </component>
</Observation>