I66 Non-Billable Code
Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
Chapter Classification
Chapter 9
Diseases of the circulatory system (I00-I99)
Section Detail
I60-I69
Cerebrovascular diseases (I60-I69)
Coding Guidelines & Notes
includes
- embolism of cerebral artery
- narrowing of cerebral artery
- obstruction (complete) (partial) of cerebral artery
- thrombosis of cerebral artery
excludes1
- Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5)
More Specific Diagnosis Codes
This code is not billable as it requires a higher level of specificity. Select a more specific code below.
- I66.0 - Occlusion and stenosis of middle cerebral artery
- I66.1 - Occlusion and stenosis of anterior cerebral artery
- I66.2 - Occlusion and stenosis of posterior cerebral artery
- 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
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