ICD-10-CM > I00-I99 > I60-I69 > I63 > I63.3 > I63.34 I63.34 Cerebral infarction due to thrombosis of cerebellar artery Non-Billable/Non-Specific Codes I63.341Cerebral infarction due to thrombosis of right cerebellar arteryI63.342Cerebral infarction due to thrombosis of left cerebellar arteryI63.343Cerebral infarction due to thrombosis of bilateral cerebellar arteriesI63.349Cerebral infarction due to thrombosis of unspecified cerebellar artery