ICD-10-CM category
I65: Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
Codes under I65 (Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I65.0 | Occlusion and stenosis of vertebral artery | — |
| I65.01 | Occlusion and stenosis of right vertebral artery | ✓ |
| I65.1 | Occlusion and stenosis of basilar artery | ✓ |
| I65.02 | Occlusion and stenosis of left vertebral artery | ✓ |
| I65.2 | Occlusion and stenosis of carotid artery | — |
| I65.03 | Occlusion and stenosis of bilateral vertebral arteries | ✓ |
| I65.8 | Occlusion and stenosis of other precerebral arteries | ✓ |
| I65.09 | Occlusion and stenosis of unspecified vertebral artery | ✓ |
| I65.9 | Occlusion and stenosis of unspecified precerebral 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 | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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