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ICD-10-CM 2027

ICD-10 code for carotid arteriosclerosis

I65.2

Occlusion and stenosis of carotid artery

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) › carotid”. Page updated September 29, 2026.

About coding carotid arteriosclerosis

The ICD-10-CM code for carotid arteriosclerosis is I65.2 (Occlusion and stenosis of carotid artery).

Within I65 (occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction), I65.2 is specifically for occlusion and stenosis of carotid artery. Related codes cover vertebral artery (I65.0), basilar artery (I65.1), other precerebral arteries (I65.8) and unspecified precerebral artery (I65.9).

To report this condition, pick the subcode that matches the documentation: I65.21 (artery), I65.22 (artery), I65.23 (arteries) and I65.29 (artery).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about carotid arteriosclerosis ICD-10 codes

What is the ICD-10 code for carotid arteriosclerosis?

I65.2 — Occlusion and stenosis of carotid artery (a header code; report a more specific subcode).

Is I65.2 billable?

No. I65.2 is a header code. Report one of its more specific subcodes instead.