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

Non-Billable/Non-Specific

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

  • I65.0Occlusion and stenosis of vertebral artery
    • I65.01Occlusion and stenosis of right vertebral artery
    • I65.02Occlusion and stenosis of left vertebral artery
    • I65.03Occlusion and stenosis of bilateral vertebral arteries
    • I65.09Occlusion and stenosis of unspecified vertebral artery
  • I65.1Occlusion and stenosis of basilar artery
  • I65.2Occlusion and stenosis of carotid artery
    • I65.21Occlusion and stenosis of right carotid artery
    • I65.22Occlusion and stenosis of left carotid artery
    • I65.23Occlusion and stenosis of bilateral carotid arteries
    • I65.29Occlusion and stenosis of unspecified carotid artery
  • I65.8Occlusion and stenosis of other precerebral arteries
  • I65.9Occlusion and stenosis of unspecified precerebral artery