I77.71

I77.71: Dissection of carotid artery

Billable / specific codeICD-10-CM

I77.71 is a billable, specific ICD-10-CM code for dissection of carotid artery. It is valid for submission on a claim.

Check I77.71 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above I77.71

Not part of this code, but both may be coded when both are present.

Written on I77.7: Other arterial dissection

dissection of aorta (I71.0-)
dissection of coronary artery (I25.42)

Written on I77: Other disorders of arteries and arterioles

collagen (vascular) diseases (M30-M36)
hypersensitivity angiitis (M31.0)
pulmonary artery (I28.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I77.71 is named in 16 Medicare coverage policies: 16 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
A56697Billing and Coding: Non-Invasive Vascular Studies

Alphabetic index entries that lead here

Dissection›artery›carotid

Code history

Unchanged in every release from FY2024 to FY2027.