The three-part model for coding causes and mechanisms of healthcare-related adverse events

Southern, Danielle A.; Harrison, James E.; Romano, Patrick S.; Le Pogam, Marie-Annick; Pincus, Harold A.; Ghali, William A.

ICD-11 provides a promising new way to capture healthcare-related harm or injury. In this paper, we elaborate on the framework for describing healthcare-related events where there is a presumed causal link between an event and underlying healthcare-related factors. The three-part model for describing healthcare-related harm or injury in ICD-11 consists of (1) a healthcare-related activity that is the cause of injury or other harm (selected from Chapter 23 of ICD-11); (2) a mode or mechanism of injury or harm, related to the underlying cause (also from Chapter 23 of ICD-11); and (3) the harmful consequences of the event to the patient, selected from any of Chapters 1 through 22 of ICD-11 (most importantly, the injury or harm experienced by the patient). Concepts from these three elements are linked/clustered through postcoordination to reflect the three-part model in a single coded expression. ICD-11 contains many novel features, and the three-part model described here for healthcare-related adverse events is a notable example.


  • thumnail for 12911_2022_Article_1786.pdf 12911_2022_Article_1786.pdf application/pdf 309 KB Download File

Also Published In

More About This Work

Published Here
December 20, 2022


International Classification of Diseases, Adverse events, Quality and safety, ICD11