Reformatted Crosswalk-Tables Between Annual ICD-10-Versions for Cross Version Data Analysis

Area of Science:

• Health Informatics
• Medical Coding Systems

Background:

• The International Statistical Classification of Diseases and Related Health Problems, 10th Revision, German Modification (ICD-10-GM) is essential for morbidity coding in Germany.
• Annual revisions of ICD-10-GM introduce backward compatibility challenges, impacting cross-version data analysis.

Purpose of the Study:

• To address backward compatibility issues arising from annual ICD-10-GM revisions.
• To present automated solutions for managing different ICD-10-GM versions.

Main Methods:

• Analysis of annual crosswalk-tables across 21 ICD-10-GM versions.
• Development of two automated handling solutions: a Neo4J database and FHIR ConceptMaps.

Main Results:

• A study of 21 ICD-10-GM versions revealed transition difficulties between versions (0.89% older to newer, 0.48% newer to older).
• While not highly significant, these transition ratios warrant attention and mitigation strategies.

Conclusions:

• Automated solutions are necessary to manage the complexities of evolving ICD-10-GM versions.
• Neo4J databases and FHIR ConceptMaps offer viable approaches for seamless cross-version data analysis in healthcare.