Health Device Data Transfer
Version 1.0.0-rc2 - release

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

ValueSet: MIV Lung Function Testing from LOINC

Official URL: https://gematik.de/fhir/hddt/ValueSet/hddt-miv-lung-function-testing Version: 1.0.0-rc2
Active as of 2026-03-04 Computable Name: HddtMivLungFunctionTesting

Copyright/Legal: gematik GmbH. This material contains content from LOINC. LOINC is copyright ©1995, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license. LOINC® is a registered United States trademark of Regenstrief Institute, Inc.

Dieses ValueSet 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.

Das ValueSet HddtMivLungFunctionTesting definiert den Mandatory Interoperable Value (MIV) "Lung Function Testing". Die Definition besteht aus

  • dieser Beschreibung, die die Semantik und die bestimmenden Merkmale des MIV liefert
  • einer Menge von LOINC-Codes, die MIV-konforme Messklassifikationen entlang der LOINC-Achsen Komponente, System, Skala und Methode definieren

Der MIV Lung Function Testing umfasst Werte aus Lungenfunktionstests, die durch Ausatmen in ein handgehaltenes Peak-Flow-Meter oder Spirometer durchgeführt werden. Die Messungen erfolgen zweimal täglich oder häufiger, wenn dies durch den Versorgungsplan oder den Zustand des Patienten erforderlich ist.

Das ValueSet für den MIV Lung Function Testing enthält LOINC-Codes für die Messung des Peak Expiratory Flow (PEF) und des Forcierten Exspiratorischen Volumens in 1 Sekunde (FEV1). Ebenfalls enthalten sind LOINC-Codes für die entsprechenden Referenzwerte sowie relative Werte (z. B. FEV1 measured/predicted). Dieses ValueSet enthält die LOINC-Codes nicht direkt, sondern die Codes stammen aus drei separaten ValueSets:

  • HddtLungFunctionTestingValues: Codes für einzelne Lungenfunktionstests
  • HddtLungFunctionReferenceValues: Codes für Referenzwerte der Lungenfunktion
  • HddtLungFunctionRelativeValues: Codes für relative Lungenfunktionswerte, berechnet in Prozent (%)

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This ValueSet 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.

This ValueSet defines the Mandatory Interoperable Value (MIV) "Lung Function Testing". The definition is made up from

  • this description which provides the semantics and defining characteristics of the MIV
  • a set of LOINC codes that define MIV-compliant measurement classifications along the LOINC axes component, system, scale and method.

The MIV Lung Function Testing covers values from lung function testings that are performed by exhaling air into a hand-held peak flow meter or spirometer. Measurements are performed twice a day, or more frequently if required by the care plan or the patient’s condition.

The ValueSet for the MIV Lung Function Testing includes LOINC codes for measuring the Peak Expiratory Flow (PEF) and Forced Expiratory Volume in 1 second (FEV1). Also included are LOINC codes for the corresponding reference values, and relative values (e.g. FEV1 measured/predicted). This ValueSet does not include LOIC codes directly, instead the codes come from three separate ValueSets:

  • HddtLungFunctionTestingValues: codes for individual lung function testings
  • HddtLungFunctionReferenceValues: codes for lung function reference values
  • HddtLungFunctionRelativeValues: codes for relative lung function values, calculated in percentages (%)

References

This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

Logical Definition (CLD)

Language: en

Profile: Shareable ValueSet

This value set includes codes based on the following rules:

 

Expansion

This value set contains 6 concepts

SystemCodeDisplay (en) - English (English, en)JSONXML
http://loinc.org  19935-6Maximum expiratory gas flow Respiratory system airway by Peak flow meter
http://loinc.org  20150-9FEV1
http://loinc.org  83368-1Personal best peak expiratory gas flow Respiratory system airway
http://loinc.org  20149-1FEV1 Predicted
http://loinc.org  20152-5FEV1 measured/predicted
https://gematik.de/fhir/hddt/CodeSystem/hddt-lung-function-temporary-codes  PEF-measured/predictedPEF measured/predicted

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
System The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance)
Display The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code