I66Occls and stenosis of cereb art, not rslt in cerebral infrc
ICD-10-CM category (non-billable header) code — part of Cerebrovascular diseases (I60-I69)
Coding Notes
Includes
- embolism of cerebral artery
- narrowing of cerebral artery
- obstruction (complete) (partial) of cerebral artery
- thrombosis of cerebral artery
Excludes1 (never code both together)
- Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5)
Subcategories (6)
- 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
- I66.8 Occlusion and stenosis of other cerebral arteries
- I66.9 Occlusion and stenosis of unspecified cerebral artery