Current
I65 — Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
Part of Chapter 9: Diseases of the circulatory system , block Cerebrovascular diseases (I60-I69) .
Official Notes
Includes
embolism of precerebral artery
Includes
narrowing of precerebral artery
Includes
obstruction (complete) (partial) of precerebral artery
Includes
thrombosis of precerebral artery
Excludes1
insufficiency, NOS, of precerebral artery ( G45 .-)
Excludes1
insufficiency of precerebral arteries causing cerebral infarction (I63.0-I63.2)
Child Codes
- I65.0 Occlusion and stenosis of vertebral artery Has subcodes
- I65.1 Occlusion and stenosis of basilar artery Billable
- I65.2 Occlusion and stenosis of carotid artery Has subcodes
- I65.8 Occlusion and stenosis of other precerebral arteries Billable
- I65.9 Occlusion and stenosis of unspecified precerebral artery Billable
FY 2027 effective October 1, 2026 · CDC NCHS and CMS