I23

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

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027

SourceCMS ICD-10-CM order file

ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

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

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.