ICD-10-CM Book 2026 Edition

Chapters ICD-10-CM Book Table of Content /
chapter 9 I00-I99 Diseases of the circulatory system /
I20-I25 Ischemic heart diseases /
I21 Acute myocardial infarction

  Billable ICD-10-CM Code I21.A9
I21.A9
Other myocardial infarction type
Myocardial infarction associated with revascularization procedure
Myocardial infarction type 3
Myocardial infarction type 4a
Myocardial infarction type 4b
Myocardial infarction type 4c
Myocardial infarction type 5
codeFirst
, if applicable, postprocedural myocardial infarction following cardiac surgery (I97.190), or postprocedural myocardial infarction during cardiac surgery (I97.790)
codeAlso
complication, if known and applicable, such as:
(acute) stent occlusion (T82.897-)
(acute) stent stenosis (T82.855-)
(acute) stent thrombosis (T82.867-)
cardiac arrest due to underlying cardiac condition (I46.2)
complication of percutaneous coronary intervention (PCI) (I97.89)
occlusion of coronary artery bypass graft (T82.218-)