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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
What this means — in plain language
MedlinePlus · NIHWhat is a heart attack? A heart attack, also called a myocardial infarction, is a type of heart disease . It happens when blood flow to the heart suddenly becomes blocked. Without the blood coming in, the heart can't get oxygen. If not treated quickly, the heart muscle begins to die. But if you get quick treatment, you may be able to prevent or limit damage to the heart muscle. That's why it's important to know the…
Read more about Heart Attack at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Myocardial infarction with coronary microvascular disease
- •Myocardial infarction with nonobstructive coronary arteries [MINOCA] with microvascular disease
Medications indicated for this condition
FDA labeling- TechnetiumRadioactive Diagnostic Agent [EPC]›
- LisinoprilThiazide Diuretic [EPC]›
- AtorvastatinHMG-CoA Reductase Inhibitor [EPC]›
- Atenololbeta-Adrenergic Blocker [EPC]›
- Clopidogrel›
- Enoxaparin›
- TicagrelorP2Y12 Platelet Inhibitor [EPC]›
- ValsartanAngiotensin 2 Receptor Blocker [EPC]›
- Prasugrel›
- Atorvastatin Calcium, Film Coated›
- Papaverine›
- Tetrakis(1-isocyano-2-methoxy-2-methyl-propane)-copper(i) Tetrafluoroborate›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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