ICD-10: I21
Acute myocardial infarction
Clinical Information
Includes
- myocardial infarction specified as acute or with a stated duration of 4 weeks (28 days) or less from onset
- coronary (artery) thrombosis
- coronary (artery) occlusion
- coronary (artery) rupture
- infarction of heart, myocardium, or ventricle
- coronary (artery) embolism
- cardiac infarction
Coding Guidelines
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)
- code, if applicable, to identify:
- tobacco dependence (F17.-)
- history of tobacco dependence (Z87.891)
- exposure to environmental tobacco smoke (Z77.22)
- tobacco use (Z72.0)
- occupational exposure to environmental tobacco smoke (Z57.31)
Excludes 2
- subsequent type 1 myocardial infarction (I22.-)
- old myocardial infarction (I25.2)
- postmyocardial infarction syndrome (I24.1)
Subcategories
I21.1
ST elevation (STEMI) myocardial infarction of inferior wall
I21.3
ST elevation (STEMI) myocardial infarction of unspecified site
I21.A
Other type of myocardial infarction
I21.B
Myocardial infarction with coronary microvascular dysfunction
I21.4
Non-ST elevation (NSTEMI) myocardial infarction
I21.9
Acute myocardial infarction, unspecified
I21.0
ST elevation (STEMI) myocardial infarction of anterior wall
I21.2
ST elevation (STEMI) myocardial infarction of other sites
Related Diseases
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