MCMCB Pro
I65.29

I65.29Occlusion and stenosis of unspecified carotid artery

Billable / specific codeICD-10-CM

I65.29 is a billable, specific ICD-10-CM code for occlusion and stenosis of unspecified carotid artery. It is valid for submission on a claim.

Risk adjustment

I65.29 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

I65.29 is named in 8 Medicare coverage policies 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56722Billing and Coding: Intraoperative Neurophysiological Testing
  • A56758Billing and Coding: Non-Invasive Vascular Studies
  • A56758Billing and Coding: Non-Invasive Vascular Studies
  • A57174Billing and Coding: MolDX: Pharmacogenomics Testing

Related codes at this level

Codes that share I65.2. If I65.29 is not quite right, the correct code is usually one of these.

Questions about I65.29

Is I65.29 a billable ICD-10-CM code?
Yes. I65.29 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I65.29 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.