I65.1 OCCLUSION AND STENOSIS OF BASILAR ARTERY

Code Information

Diagnosis Code: I65.1
Short Description: Occlusion and stenosis of basilar artery
Long Description: Occlusion and stenosis of basilar artery
Code Version: 2025 ICD-10-CM

The code I65.1 is VALID for claim submission

Code Classification

Diseases of the circulatory system (I00–I99)
- Cerebrovascular diseases (I60-I69)
  - Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction (I65)

Synonyms

Asymptomatic occlusion of artery
Asymptomatic occlusion of basilar artery
Asymptomatic stenosis of basilar artery
Asymptomatic stenosis of intracranial artery
Basilar artery embolism
Basilar artery occlusion
Basilar artery occlusion without infarction
Basilar artery stenosis
Basilar artery thrombosis
Occlusion of branch of basilar artery
Occlusion of distal basilar artery
Occlusive embolus of basilar artery
Pontine artery occlusion
Pontine artery thrombosis

Crosswalk Information

ICD-10 Code		ICD-9 Code	ICD-9 Description
I65.1		433.00	Ocl bslr art wo infrct

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code	ICD-10 Description
I65	Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
I65.0	Occlusion and stenosis of vertebral artery
I65.01	Occlusion and stenosis of right vertebral artery
I65.02	Occlusion and stenosis of left vertebral artery
I65.03	Occlusion and stenosis of bilateral vertebral arteries
I65.09	Occlusion and stenosis of unspecified vertebral artery
I65.2	Occlusion and stenosis of carotid artery
I65.21	Occlusion and stenosis of right carotid artery
I65.22	Occlusion and stenosis of left carotid artery
I65.23	Occlusion and stenosis of bilateral carotid arteries
I65.29	Occlusion and stenosis of unspecified carotid artery
I65.8	Occlusion and stenosis of other precerebral arteries
I65.9	Occlusion and stenosis of unspecified precerebral artery

This page was last updated on: 10/1/2025

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