I22.9

Billable

Subsequent ST elevation (STEMI) myocardial infarction of unspecified site

I22.9 is the ICD-10-CM code for Subsequent ST elevation (STEMI) myocardial infarction of unspecified site. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
I00-I99
Parent
I22
Edition
FY2026

I00-I99 Diseases of the circulatory system

Includes

  • Subsequent acute myocardial infarction of unspecified site
  • Subsequent myocardial infarction (acute) NOS

Frequently asked questions

What is ICD-10 code I22.9?
I22.9 is the ICD-10-CM code for "Subsequent ST elevation (STEMI) myocardial infarction of unspecified site". It falls under I00-I99 Diseases of the circulatory system.
Is I22.9 a billable code?
Yes — I22.9 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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