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Updated: Sep 22, 2025

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TerminoDiff - Detecting Semantic Differences in HL7 FHIR CodeSystems.

Joshua Wiedekopf1,2, Cora Drenkhahn1,2, Lorenz Rosenau1,2

  • 1Institute of Medical Informatics, University of Lübeck, Lübeck, Germany.

Studies in Health Technology and Informatics
|May 25, 2022
PubMed
Summary
This summary is machine-generated.

TerminoDiff is a new application for comparing Health Level Seven Fast Healthcare Interoperability Resources (HL7 FHIR) terminological resources. It semantically analyzes metadata, concepts, and edge graphs for researchers and implementers.

Keywords:
HL7 FHIRHealth Information ExchangeTerminology as TopicVocabulary

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Area of Science:

  • Health Informatics
  • Computer Science
  • Terminology Management

Background:

  • HL7 FHIR is widely adopted in research, but lacks tools for comparing terminological resources.
  • Comparing terminological resources is crucial for terminologists and implementers.

Purpose of the Study:

  • To introduce TerminoDiff, a novel application for the semantic comparison of FHIR R4 CodeSystem resources.
  • To address the gap in tooling for terminological resource comparison.

Main Methods:

  • Developed TerminoDiff, an application for comparing FHIR R4 CodeSystem resources.
  • Implemented semantic comparison across metadata, concepts, and edge graphs.
  • Focused on a visually digestible presentation of differences.

Main Results:

  • TerminoDiff effectively compares FHIR R4 CodeSystem resources.
  • The tool identifies differences at multiple levels: metadata, concepts, and edge graphs.
  • Differences are presented in a user-friendly, visual format.

Conclusions:

  • TerminoDiff enhances the ability to compare FHIR terminological resources.
  • The tool supports terminologists and implementers by providing detailed semantic comparisons.
  • Addresses a critical need for robust tooling in FHIR terminology management.