Health Device Data Transfer
Version 1.0.0-rc2 - release

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

CodeSystem: Lung Function Reference Value Method Codes

Official URL: https://gematik.de/fhir/hddt/CodeSystem/hddt-lung-function-reference-value-method-codes Version: 1.0.0-rc2
Active as of 2026-03-04 Computable Name: HddtLungFunctionReferenceValueMethodCodes

Copyright/Legal: gematik GmbH.

Dieses CodeSystem ist Teil der Health Device Data Transfer Spezifikation (HDDT), die Profile, Operationen und ValueSets für den Datenaustausch zwischen Hilfsmitteln und digitalen Gesundheitsanwendungen (DiGA) definiert. Zentrales Element der HDDT-Spezifikation sind Mandatory Interoperable Values (MIVs). MIVs sind Klassen von Messwerten, die zu definierten Anwendungsfällen und Zwecken von DiGA beitragen.

Der MIV HddtMivLungFunctionTesting erfordert Referenzwerte zur Bewertung gemessener Lungenfunktionswerte. Diese Referenzwerte können mit unterschiedlichen Methoden bestimmt werden. Dieses CodeSystem stellt Codes zur Verfügung, um typische Methoden zur Bestimmung von Lungenfunktions-Referenzwerten auszudrücken.

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This CodeSystem is part of the Health Device Data Transfer specification (HDDT) which defines profiles, operations, and value sets for sharing data between medical aids and digital health applications (DiGA). Core of the HDDT specification are Mandatory Interoperable Values (MIVs). MIVs are classes of measurements that contribute to defined use cases and purposes of DiGA.

The MIV HddtMivLungFunctionTesting requires reference values for evaluating measured lung function values. These reference values can be determined using different methods. This CodeSystem provides codes to express typical methods for determining lung function reference values.

This Code system is referenced in the content logical definition of the following value sets:

Language: en

This case-insensitive code system https://gematik.de/fhir/hddt/CodeSystem/hddt-lung-function-reference-value-method-codes defines the following codes:

CodeDisplayDefinition
personal-best Personal Best Reference value based on the personal best value achieved by the patient within a certain time frame.
GLI-2012 Predicted Value according to Global Lung Initiative 2012 Reference value calculated based on the Global Lung Initiative 2012 equations. I.e the patient's 'race' is considered.
GLI-2022 Predicted Value according to Global Lung Initiative 2022 Reference value calculated based on the Global Lung Initiative 2022 equations. I.e. a 'race'-neutral approach is used.
other Other Other method used to determine the lung function reference value. Specify details via text input.