MCMedicalCodingSoftware
I23

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

Non-billable headerICD-10-CM

I23 is a non-billable header ICD-10-CM code for certain current complications following st elevation (stemi) and non-st elevation (nstemi) myocardial infarction (within the 28 day period). It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with I23

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • I20Angina pectoris
  • I24.1Dressler's syndrome
  • I31.2Hemopericardium, not elsewhere classified
  • I51.0Cardiac septal defect, acquired
  • I51.1Rupture of chordae tendineae, not elsewhere classified
  • I51.2Rupture of papillary muscle, not elsewhere classified
  • I51.3Intracardiac thrombosis, not elsewhere classified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead I23

9 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.