I21

Non-Billable

Acute myocardial infarction

I21 should not be used for reimbursement purposes as there are multiple sub-diagnoses that fall under this code. Please refer to the sub-diagnoses below.

Related Diagnoses

  • I21.0ST elevation (STEMI) myocardial infarction of anterior wall
    • I21.01ST elevation (STEMI) myocardial infarction involving left main coronary artery
    • I21.02ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery
    • I21.09ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall
  • I21.1ST elevation (STEMI) myocardial infarction of inferior wall
    • I21.11ST elevation (STEMI) myocardial infarction involving right coronary artery
    • I21.19ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall
  • I21.2ST elevation (STEMI) myocardial infarction of other sites
    • I21.21ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery
    • I21.29ST elevation (STEMI) myocardial infarction involving other sites
  • I21.3ST elevation (STEMI) myocardial infarction of unspecified site
  • I21.4Non-ST elevation (NSTEMI) myocardial infarction
  • I21.9Acute myocardial infarction, unspecified
  • I21.AOther type of myocardial infarction
    • I21.A1Myocardial infarction type 2
    • I21.A9Other myocardial infarction type
  • I21.BMyocardial infarction with coronary microvascular dysfunction
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