I21Non-billable (header)
Acute myocardial infarction
Related Codes· Ischemic heart diseases (I20-I25)
Sub-codes of I21(8)
I21 is a non-billable header. Select a sub-code to bill.
I21.0ST elevation (STEMI) myocardial infarction of anterior wallHeaderI21.1ST elevation (STEMI) myocardial infarction of inferior wallHeaderI21.2ST elevation (STEMI) myocardial infarction of other sitesHeaderI21.3ST elevation (STEMI) myocardial infarction of unspecified si…✓ BillableI21.4Non-ST elevation (NSTEMI) myocardial infarction✓ BillableI21.9Acute myocardial infarction, unspecified✓ BillableI21.AOther type of myocardial infarctionHeaderI21.BMyocardial infarction with coronary microvascular dysfunctio…✓ Billable
✓ Includes
- •cardiac infarction
- •coronary (artery) embolism
- •coronary (artery) occlusion
- •coronary (artery) rupture
- •coronary (artery) thrombosis
- •infarction of heart, myocardium, or ventricle
- •myocardial infarction specified as acute or with a stated duration of 4 weeks (28 days) or less from onset
⚠ Excludes 2(Not included here)
- •old myocardial infarction (I25.2)
- •postmyocardial infarction syndrome (I24.1)
- •subsequent type 1 myocardial infarction (I22.-)
Notes
- ℹcode, if applicable, to identify:
- ℹexposure to environmental tobacco smoke (Z77.22)
- ℹhistory of tobacco dependence (Z87.891)
- ℹoccupational exposure to environmental tobacco smoke (Z57.31)
- ℹstatus post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
- ℹtobacco dependence (F17.-)
- ℹtobacco use (Z72.0)
Code Hierarchy
┌9Diseases of the circulatory system (I00-I99)├I20-I25Ischemic heart diseases (I20-I25)├I21Acute myocardial infarction
└I21Acute myocardial infarction
Not sure between two codes?
⇄ Compare I21 with another code →