I22 — Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
Part of Chapter 9: Diseases of the circulatory system , block Ischemic heart diseases (I20-I25) .
Official Notes
Includes
acute myocardial infarction occurring within four weeks (28 days) of a previous acute myocardial infarction, regardless of site
Includes
cardiac infarction
Includes
coronary (artery) embolism
Includes
coronary (artery) occlusion
Includes
coronary (artery) rupture
Includes
coronary (artery) thrombosis
Includes
infarction of heart, myocardium, or ventricle
Includes
recurrent myocardial infarction
Includes
reinfarction of myocardium
Includes
rupture of heart, myocardium, or ventricle
Includes
subsequent type 1 myocardial infarction
Use Additional Code
code, if applicable, to identify:
Use Additional Code
exposure to environmental tobacco smoke ( Z77.22 )
Use Additional Code
history of tobacco dependence ( Z87.891 )
Use Additional Code
occupational exposure to environmental tobacco smoke ( Z57.31 )
Use Additional Code
status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility ( Z92.82 )
Use Additional Code
tobacco dependence ( F17 .-)
Use Additional Code
tobacco use ( Z72.0 )
Excludes1
subsequent myocardial infarction, type 2 ( I21.A1 )
Excludes1
subsequent myocardial infarction of other type (type 3) (type 4) (type 5) ( I21.A9 )
Child Codes
- I22.0 Subsequent ST elevation (STEMI) myocardial infarction of anterior wall Billable
- I22.1 Subsequent ST elevation (STEMI) myocardial infarction of inferior wall Billable
- I22.2 Subsequent non-ST elevation (NSTEMI) myocardial infarction Billable
- I22.8 Subsequent ST elevation (STEMI) myocardial infarction of other sites Billable
- I22.9 Subsequent ST elevation (STEMI) myocardial infarction of unspecified site Billable
Referenced By
Official notes on these codes cite I22.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS