I66.- Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction

Includes

  • Embolism of cerebral artery
  • Narrowing of cerebral artery
  • Obstruction (complete) (partial) of cerebral artery)
  • Thrombosis of cerebral artery

Excludes

  • Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3–I63.5)

Diagnosis Codes
19
  • I66
    		•  Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
    • I66.0
    		 Occlusion and stenosis of middle cerebral artery
      • I66.01
    		 Occlusion and stenosis of right middle cerebral artery
      • I66.02
    		 Occlusion and stenosis of left middle cerebral artery
      • I66.03
    		 Occlusion and stenosis of bilateral middle cerebral arteries
      • I66.09
    		 Occlusion and stenosis of unspecified middle cerebral artery
    • I66.1
    		 Occlusion and stenosis of anterior cerebral artery
      • I66.11
    		 Occlusion and stenosis of right anterior cerebral artery
      • I66.12
    		 Occlusion and stenosis of left anterior cerebral artery
      • I66.13
    		 Occlusion and stenosis of bilateral anterior cerebral arteries
      • I66.19
    		 Occlusion and stenosis of unspecified anterior cerebral artery
    • I66.2
    		 Occlusion and stenosis of posterior cerebral artery
      • I66.21
    		 Occlusion and stenosis of right posterior cerebral artery
      • I66.22
    		 Occlusion and stenosis of left posterior cerebral artery
      • I66.23
    		 Occlusion and stenosis of bilateral posterior cerebral arteries
      • I66.29
    		 Occlusion and stenosis of unspecified posterior cerebral artery
    • I66.3
    		 Occlusion and stenosis of cerebellar arteries
    • I66.8
    		 Occlusion and stenosis of other cerebral arteries
    • I66.9
    		 Occlusion and stenosis of unspecified cerebral artery
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