I23 ICD-10-CM Code: Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
I23Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
ICD-10-CM diagnosis code · United States clinical modification
Where I23 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Ischemic heart diseases (I20-I25)
- 3
Category I23
Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
- 4
Code I23
Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
Codes under I23
I23 is a non-billable category. Choose the child code that best matches the documented diagnosis.
I23.0Hemopericardium as current complication following acute myocardial infarctionI23.1Atrial septal defect as current complication following acute myocardial infarctionI23.2Ventricular septal defect as current complication following acute myocardial infarctionI23.3Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarctionI23.4Rupture of chordae tendineae as current complication following acute myocardial infarctionI23.5Rupture of papillary muscle as current complication following acute myocardial infarctionI23.6Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarctionI23.7Postinfarction anginaI23.8Other current complications following acute myocardial infarctionNotes for this code
Inclusion terms
No inclusion terms are listed for I23.
Code first
No “code first” instruction is listed for I23.
Use additional code
No “use additional code” instruction is listed for I23.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for I23.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for I23.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code I23 mean?
I23 is the FY 2027 U.S. ICD-10-CM code for “Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period).”
Is I23 a billable or specific ICD-10-CM code?
No. I23 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is I23 located in ICD-10-CM?
I23 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Ischemic heart diseases (I20-I25) (I20–I25), under category I23, Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period).
What coding notes are listed for I23?
No inclusion terms are listed for I23 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.