ICD-10-CM · Chapter 9
I21..4 Non-ST elevation (NSTEMI) myocardial infarction
Includes
- Acute subendocardial myocardial infarction
- Non-Q wave myocardial infarction NOS
- Nontransmural myocardial infarction NOS
- Type 1 non-ST elevation myocardial infarction
Last reviewed: September 2026