I21 - ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
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
Use Additional Code:
-code, if applicable, to identify:
-exposure to environmental tobacco smoke Z77.22)
-history of tobacco use 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)
Excludes 2:
-old myocardial infarction I25.2)
-postmyocardial infarction syndrome I24.1)
-subsequent myocardial infarction (I22.-)
I21.0 - ST elevation (STEMI) myocardial infarction of anterior wall
I21.01 - ST elevation (STEMI) myocardial infarction involving left main coronary artery
I21.02 - ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery
I21.09 - ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall
I21.1 - ST elevation (STEMI) myocardial infarction of inferior wall
I21.11 - ST elevation (STEMI) myocardial infarction involving right coronary artery
I21.19 - ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall
I21.2 - ST elevation (STEMI) myocardial infarction of other sites
I21.21 - ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery
I21.29 - ST elevation (STEMI) myocardial infarction involving other sites
I21.3 - ST elevation (STEMI) myocardial infarction of unspecified site
I21.4 - Non-ST elevation (NSTEMI) myocardial infarction