Implementation Guide
Health Device Data Transfer
Version 0.1.0 - ballot

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

: HDDT rtCGM Incomplete Chunk Observation Example - XML Representation

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<Observation xmlns="http://hl7.org/fhir">
  <id value="example-cgm-series-incomplete"/>
  <meta>
    <profile
             value="https://gematik.de/fhir/hddt/StructureDefinition/hddt-continuous-glucose-measurement"/>
  </meta>
  <status value="preliminary"/>
  <code>
    <coding>
      <system value="http://loinc.org"/>
      <code value="99504-3"/>
      <display value="Glucose [Mass/volume] in Interstitial fluid"/>
    </coding>
  </code>
  <effectivePeriod>
    <start value="2025-08-28T08:00:00Z"/>
    <end value="2025-08-28T09:00:00Z"/>
  </effectivePeriod>
  <valueSampledData>
    <origin>
      <value value="0"/>
      <unit value="mg/dl"/>
      <system value="http://unitsofmeasure.org"/>
      <code value="mg/dL"/>
    </origin>
    <period value="60000"/>
    <dimensions value="1"/>
    <data
          value="110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129"/>
  </valueSampledData>
  <note>
    <text
          value="Example CGM data series with 1-minute intervals over 20 minutes (20 samples), but status incomplete."/>
  </note>
  <method>
    <coding>
      <system value="http://snomed.info/sct"/>
      <code value="463729000"/>
      <display
               value="Point-of-care blood glucose continuous monitoring system (physical object)"/>
    </coding>
  </method>
  <device>🔗 
    <reference value="DeviceMetric/example-devicemetric-cgm"/>
  </device>
</Observation>