I21.B
BillableMyocardial infarction with coronary microvascular dysfunction
I21.B is the ICD-10-CM code for Myocardial infarction with coronary microvascular dysfunction. It is a billable, specific code valid for reimbursement.
I00-I99 Diseases of the circulatory system
Includes
- •Myocardial infarction with coronary microvascular disease
- •Myocardial infarction with nonobstructive coronary arteries [MINOCA] with microvascular disease
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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