I65.8

I65.8: Occlusion and stenosis of other precerebral arteries

Billable / specific codeICD-10-CM

I65.8 is a billable, specific ICD-10-CM code for occlusion and stenosis of other precerebral arteries. It is valid for submission on a claim.

Check I65.8 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above I65.8

A category’s note binds every code beneath it.

Written on I65: Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction

insufficiency, NOS, of precerebral artery (G45.-)
insufficiency of precerebral arteries causing cerebral infarction (I63.0-I63.2)

Risk adjustment

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

Medicare coverage

I65.8 is named in 31 Medicare coverage policies: 31 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
A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography

Alphabetic index entries that lead here

Beck's syndrome(anterior spinal artery occlusion)
Céstan-Raymond syndrome
Raymond syndrome(-Céstan)
Syndrome›Beck's
Syndrome›Céstan(-Raymond)
Syndrome›Raymond(-Céstan)
Embolism›artery›auditory, internal
Embolism›artery›choroidal(anterior)
Embolism›artery›communicating posterior
Embolism›artery›hypophyseal
Embolism›artery›pontine
Narrowing›artery›auditory, internal

Code history

Unchanged in every release from FY2024 to FY2027.