I21.A9 - Other myocardial infarction type

  • Applicable to Other myocardial infarction type
  • The 2025 edition of ICD10-CM I21.A9 became effective on October 1, 2024.
  • This is the American ICD10-CM version of I21.A9 - other international versions of ICD10 I21.A9 may differ.
  • I21.A9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

 Inclusion Term

  • 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-)

The following codes above I21.A9 contain annotation back-references that may be applicable to I21.A9:

Chapter: I00-I99 Diseases of the circulatory system

Section: I20-I25 Ischemic heart diseases

Category: I21 Acute myocardial infarction

infarction icd 10
 
myocardial icd 10
 
Billable/Specific Code

Browse other similar CM codes

I21.0
 
I21.01
 
I21.02
 
I21.09
 
I21.1
 
I21.11
 
I21.19
 
I21.2
 
I21.21
 
I21.29
 
I21.3
 
I21.4
 
I21.9
 
I21.A
 
I21.A1
 
I21.A9
 
I21.B
 

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