I22
Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
Choose the additional character
I22 needs more characters to be billable. Pick the specific code below.
- I22.0Subsequent ST elevation (STEMI) myocardial infarction of anterior wallBillable
- I22.1Subsequent ST elevation (STEMI) myocardial infarction of inferior wallBillable
- I22.2Subsequent non-ST elevation (NSTEMI) myocardial infarctionBillable
- I22.8Subsequent ST elevation (STEMI) myocardial infarction of other sitesBillable
- I22.9Subsequent ST elevation (STEMI) myocardial infarction of unspecified siteBillable
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
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
FY 2026 ›Sections that reference I22
Sections whose FY 2026 text names I22, its I22 category, or a range containing it — the chapter guidance above is the authoritative source.