I21.11
BillableST elevation (STEMI) myocardial infarction involving right coronary artery
I21.11 is the ICD-10-CM code for ST elevation (STEMI) myocardial infarction involving right coronary artery. It is a billable, specific code valid for reimbursement.
I00-I99 Diseases of the circulatory system
Includes
- •Inferoposterior transmural (Q wave) infarction (acute)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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