Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction - I65

 Category Includes

• embolism of precerebral artery
• narrowing of precerebral artery
• obstruction (complete) (partial) of precerebral artery
• thrombosis of precerebral artery

 Type 1 Excludes

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

 Codes

• 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
• I65.1 - Occlusion and stenosis of basilar 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