I65.21
BillableOcclusion and stenosis of right carotid artery
I65.21 is the ICD-10-CM code for Occlusion and stenosis of right carotid artery. It is a billable, specific code valid for reimbursement.
I00-I99 Diseases of the circulatory system
What this means — in plain language
MedlinePlus · NIHYour carotid arteries are two large blood vessels in your neck. They supply your brain and head with blood. If you have carotid artery disease, the arteries become narrow or blocked, usually because of atherosclerosis . Atherosclerosis is the buildup of plaque, which is made up of fat, cholesterol , calcium, and other substances found in the blood. Carotid artery disease is serious because it can block the blood…
Read more about Carotid Artery Disease at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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