ICD-10-CM · Chapter 9

I21..3 ST elevation (STEMI) myocardial infarction of unspecified site

Billable

← I21 — Acute myocardial infarction Chapter 9: I00-I99

Includes

Acute transmural myocardial infarction of unspecified site
Transmural (Q wave) myocardial infarction NOS
Type 1 ST elevation myocardial infarction of unspecified site

Last reviewed: September 2026