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  2. ICD-10-CM
  3. Ch. I00-I99
  4. Sec. I20-I25
  5. Category I23
Category I23

Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)

Clinical Classification Guidelines

Specific Diagnosis Codes

Hemopericardium as current complication following acute myocardial infarction
I23.0
Atrial septal defect as current complication following acute myocardial infarction
I23.1
Ventricular septal defect as current complication following acute myocardial infarction
I23.2
Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarction
I23.3
Rupture of chordae tendineae as current complication following acute myocardial infarction
I23.4
Rupture of papillary muscle as current complication following acute myocardial infarction
I23.5
Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction
I23.6
Postinfarction angina
I23.7
Other current complications following acute myocardial infarction
I23.8
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Data updated for October 2025 release.

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