I66 — ICD-10-CM Diagnosis Codes

• 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 billable
• I66.02 Occlusion and stenosis of left middle cerebral artery billable
• I66.03 Occlusion and stenosis of bilateral middle cerebral arteries billable
• I66.09 Occlusion and stenosis of unspecified middle cerebral artery billable
• I66.1 Occlusion and stenosis of anterior cerebral artery
• I66.11 Occlusion and stenosis of right anterior cerebral artery billable
• I66.12 Occlusion and stenosis of left anterior cerebral artery billable
• I66.13 Occlusion and stenosis of bilateral anterior cerebral arteries billable
• I66.19 Occlusion and stenosis of unspecified anterior cerebral artery billable
• I66.2 Occlusion and stenosis of posterior cerebral artery
• I66.21 Occlusion and stenosis of right posterior cerebral artery billable
• I66.22 Occlusion and stenosis of left posterior cerebral artery billable
• I66.23 Occlusion and stenosis of bilateral posterior cerebral arteries billable
• I66.29 Occlusion and stenosis of unspecified posterior cerebral artery billable
• I66.3 Occlusion and stenosis of cerebellar arteries billable
• I66.8 Occlusion and stenosis of other cerebral arteries billable
• I66.9 Occlusion and stenosis of unspecified cerebral artery billable