Health Device Data Transfer
Version 1.0.0-rc2 - release

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

: HDDT Lung Function Relative Value Obervation Example (FEV1 measured/predicted) - JSON Representation

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{
  "resourceType" : "Observation",
  "id" : "example-fev1-relative-value",
  "meta" : {
    "profile" : [
      🔗 "https://gematik.de/fhir/hddt/StructureDefinition/hddt-lung-function-testing-complete"
    ]
  },
  "status" : "final",
  "code" : {
    "coding" : [
      {
        "system" : "http://loinc.org",
        "code" : "20152-5",
        "display" : "FEV1 measured/predicted"
      }
    ]
  },
  "effectiveDateTime" : "2025-12-28T08:00:00Z",
  "valueQuantity" : {
    "value" : 75.5,
    "unit" : "%",
    "system" : "http://unitsofmeasure.org",
    "code" : "%"
  },
  "device" : {
    🔗 "reference" : "Device/example-device-peak-flow-meter"
  },
  "derivedFrom" : [
    {
      🔗 "reference" : "Observation/example-fev1-single-measurement"
    },
    {
      🔗 "reference" : "Observation/example-fev1-reference-value"
    }
  ]
}