I66.3
ICD-10BillableOcclusion and stenosis of cerebellar arteries
Official ICD-10-CM descriptor (FY2026)
Occlusion and stenosis of cerebellar arteries
I66.3 is valid for submission on a claim — CMS flags it as a billable, specific code.
Related codes in I66
- I66.0Occlusion and stenosis of middle cerebral arterycategory
- I66.1Occlusion and stenosis of anterior cerebral arterycategory
- I66.2Occlusion and stenosis of posterior cerebral arterycategory
- I66.8Occlusion and stenosis of other cerebral arteries
- I66.9Occlusion and stenosis of unspecified cerebral artery
Where this code sits
- Parent code
- I66
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.