ICD-10-CM I66.8: Occlusion and stenosis of other cerebral arteries

ICD-10-CM Diagnosis Code (2025)

Official Description for I66.8

Occlusion and stenosis of other cerebral arteries

Coding Notes & Guidelines for I66.8

Inclusion Terms

Occlusion and stenosis of perforating arteries

Parent Code (Less Specific):

About ICD-10-CM Code I66.8 (Occlusion and stenosis of other cerebral arteries)

ICD-10-CM code I66.8 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM I66.8 became effective on October 1, 2024.

This page provides detailed information about I66.8 - Occlusion and stenosis of other cerebral arteries. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Occlusion and stenosis of other cerebral arteries.