I22.0
Subsequent ST elevation (STEMI) myocardial infarction of anterior wall
HCC risk adjustment mapping
CMS-HCC V28
Acute Myocardial Infarction
CMS-HCC ESRD V24
Acute Myocardial Infarction
RxHCC V08
Coronary Artery Disease
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Subsequent acute transmural myocardial infarction of anterior wall Subsequent transmural (Q wave) infarction (acute)(of) anterior (wall) NOS Subsequent anteroapical transmural (Q wave) infarction (acute) Subsequent anterolateral transmural (Q wave) infarction (acute) Subsequent anteroseptal transmural (Q wave) infarction (acute)
acute myocardial infarction occurring within four weeks (28 days) of a previous acute myocardial infarction, regardless of site cardiac infarction coronary (artery) embolism coronary (artery) occlusion coronary (artery) rupture coronary (artery) thrombosis infarction of heart, myocardium, or ventricle recurrent myocardial infarction reinfarction of myocardium rupture of heart, myocardium, or ventricle subsequent type 1 myocardial infarction
subsequent myocardial infarction, type 2 (I21.A1) subsequent myocardial infarction of other type (type 3) (type 4) (type 5) (I21.A9)
code, if applicable, to identify: exposure to environmental tobacco smoke (Z77.22) history of tobacco dependence (Z87.891) occupational exposure to environmental tobacco smoke (Z57.31) status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82) tobacco dependence (F17.-) tobacco use (Z72.0)
the presence of hypertension (I10-I1A)
certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) systemic connective tissue disorders (M30-M36) transient cerebral ischemic attacks and related syndromes (G45.-)
Official Guidelines for I22.0
FY 2026 ›Sections that reference I22.0
Sections whose FY 2026 text names I22.0, its I22 category, or a range containing it — the chapter guidance above is the authoritative source.
Find I22.0 in the alphabetic index
4 index paths lead to this code
- Infarct, infarction › myocardium, myocardial › subsequent › anterior
- Infarct, infarction › myocardium, myocardial › ST elevation › anterior › subsequent
- Infarct, infarction › myocardium, myocardial › subsequent › ST elevation › anterior
- Infarct, infarction › myocardium, myocardial › subsequent › transmural › anterior