Development and external validation of tools for categorizing diagnosis codes in international hospital data

• DOI: 10.1016/j.ijmedinf.2024.105508
• Publication Date: 2024-05-29T19:00:26Z
• Authors: Sarah L. Malecki; Anne Loffler; Daniel Tamming; Niklas Dyrby Joha...; Tor Biering-Sørensen; Michael Fralick; Shahmir Sohail; Jessica Shi; Surain B Roberts; Michael Colacci; Marwa Ismail; Fahad Razak; Amol A. Verma
• Keywords: Diagnosis code

The Clinical Classification Software Refined (CCSR) is a tool that groups many thousands of International Diseases 10th Revision (ICD-10) diagnosis codes into approximately 500 clinically meaningful categories, simplifying analyses. However, CCSR was developed for use in the United States and may not work well with other country-specific ICD-10 coding systems.