I22.1Billable

Subsequent ST elevation (STEMI) myocardial infarction of inferior wall

Short description: Subsequent STEMI of inferior wall

Chapter
9. Diseases of the circulatory system
Category
I22
Effective date
October 1, 2026

Related codes in category I22

I22Subsequent STEMI & NSTEMI mocard infrcI22.0Subsequent STEMI of anterior wallYesI22.2Subsequent non-ST elevation (NSTEMI) myocardial infarctionYesI22.8Subsequent STEMI of sitesYesI22.9Subsequent STEMI of unsp siteYes

Frequently asked questions

What is ICD-10 code I22.1?

I22.1 is an ICD-10-CM diagnosis code for Subsequent ST elevation (STEMI) myocardial infarction of inferior wall.

Is I22.1 a billable code?

Yes. I22.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is I22.1 in?

I22.1 falls under Chapter 9: Diseases of the circulatory system.

When did I22.1 become effective?

I22.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to I22.1?

I22.1 belongs to category I22, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.