ICD-10-CM I23: Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)

ICD-10-CM Diagnosis Code (2025)

Official Description for I23

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

Coding Notes & Guidelines for I23

Excludes1: Not Coded Here

hemopericardium not specified as current complication following acute myocardial infarction (I31.2)

Excludes1: Not Coded Here

acquired atrial septal defect not specified as current complication following acute myocardial infarction (I51.0)

Excludes1: Not Coded Here

acquired ventricular septal defect not specified as current complication following acute myocardial infarction (I51.0)

Excludes1: Not Coded Here

rupture of chordae tendineae not specified as current complication following acute myocardial infarction (I51.1)

Excludes1: Not Coded Here

rupture of papillary muscle not specified as current complication following acute myocardial infarction (I51.2)

Excludes1: Not Coded Here

thrombosis of atrium, auricular appendage, and ventricle not specified as current complication following acute myocardial infarction (I51.3)

Child Codes (More Specific Codes for I23):

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

About ICD-10-CM Code I23 (Certain current complications following ST elevation)

ICD-10-CM code I23 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM I23 became effective on October 1, 2024.

This page provides detailed information about I23 - Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period). It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Certain current complications following ST elevation.