I21.21 ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery
Billable / valid for submission ICD10CM Release FY2026
Short description: STEMI involving left circumflex coronary artery
Version history
| Release | Valid from | Valid to | Description | Billable |
|---|---|---|---|---|
| FY2026 | 2025-10-01 | current | ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery | yes |
Related codes in I21
- I21 Acute myocardial infarction
- I21.0 ST elevation (STEMI) myocardial infarction of anterior wall
- I21.01 ST elevation (STEMI) myocardial infarction involving left main coronary artery
- I21.02 ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery
- I21.09 ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall
- I21.1 ST elevation (STEMI) myocardial infarction of inferior wall
- I21.11 ST elevation (STEMI) myocardial infarction involving right coronary artery
- I21.19 ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall
- I21.2 ST elevation (STEMI) myocardial infarction of other sites
- I21.29 ST elevation (STEMI) myocardial infarction involving other sites
- I21.3 ST elevation (STEMI) myocardial infarction of unspecified site
- I21.4 Non-ST elevation (NSTEMI) myocardial infarction
- I21.9 Acute myocardial infarction, unspecified
- I21.A Other type of myocardial infarction
- I21.A1 Myocardial infarction type 2
- I21.A9 Other myocardial infarction type
- I21.B Myocardial infarction with coronary microvascular dysfunction