Coronary disease & ACSSecondary analysis
Validity of the International Classification of Diseases, Tenth Revision codes in diagnosing myocardial infarction subtypes
- secondary analysis of a single-center prospective cohort study
- consecutive individuals
Authors' conclusion
These data suggest the ICD-10 codes for each individual MI subtype have such low sensitivity that they may not reliably and accurately identify these MI subtypes in clinical research or in quality metrics and value-based programs.
Study context
- Population
- Consecutive individuals who underwent highsensitivity cardiac troponin testing between October 2023 and February 2025individuals undergoing troponin testing
- Participants
- 24,524 individuals
- Comparison
- Clinician adjudicated diagnoses were compared to ICD-10 codes attributable to type 1 myocardial infarction (MI), type 2 MI, and type 3-5 MI
Primary result
As reported in the abstract
Diagnostic accuracy of ICD-10 codes for MI subtypes vs clinician adjudication
| Group | sensitivity | specificity |
|---|---|---|
| type 1 MI ICD-10 codes | 53% | 99% |
| type 2 MI ICD-10 codes | 3% | 99% |
| types 3-5 MI ICD-10 codes | 0% | 99% |
Original publication
Validity of the International Classification of Diseases, Tenth Revision codes in diagnosing myocardial infarction subtypes. Am Heart J. Published 19 April 2026. doi:10.1016/j.ahj.2026.107447
Summarised from the published abstract; every number is checked against it