The development, evolution, and modifications of ICD-10: Challenges to the international comparability of morbidity data

Nathalie Jette, Hude Quan, Brenda Hemmelgarn, Saskia Drosler, Christina Maass, Lori Moskal, Wansa Paoin, Vijaya Sundararajan, Song Gao, Robert Jakob, Bedihran Ustun, William Ghali

Research output: Contribution to journalArticleResearchpeer-review

63 Citations (Scopus)


BACKGROUND: The United States is about to make a major nationwide transition from ICD-9-CM coding of hospital discharges to ICD-10-CM, a country-specific modification of the World Health Organization s ICD-10. As this transition occurs, the WHO is already in the midst of developing ICD-11. Given this context, we undertook this review to discuss: (1) the history of the International Classification of Diseases (a core information building block for health systems everywhere) from its introduction to the current era of ICD-11 development; (2) differences across country-specific ICD-10 clinical modifications and the challenges that these differences pose to the international comparability of morbidity data; (3) potential strategic approaches to achieving better international ICD-11 comparability.
Original languageEnglish
Pages (from-to)1105 - 1110
Number of pages6
JournalMedical Care
Issue number12
Publication statusPublished - 2010

Cite this