I66 – Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
Coding Notes
Active
Non-billable / Non-specific, not valid for HIPAA-covered transactions
Type 1 Excludes
Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5)
Includes
embolism of cerebral artery
narrowing of cerebral artery
obstruction (complete) (partial) of cerebral artery
thrombosis of cerebral artery
Child Codes
Sibling Codes
View in Tabular
| Code | Title |
|---|---|
| I00-I99 | Diseases of the circulatory system (I00-I99) |
| I60-I69 | Cerebrovascular diseases (I60-I69) |
| I66 |
Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
Type 1 Excludes
Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5)
Includes
embolism of cerebral artery
narrowing of cerebral artery
obstruction (complete) (partial) of cerebral artery
thrombosis of cerebral artery
|
| 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 |