ICD-10-CM > I00-I99 > I60-I69 > I63 > I63.0 > I63.01 I63.01 Cerebral infarction due to thrombosis of vertebral artery Non-Billable/Non-Specific Codes I63.011Cerebral infarction due to thrombosis of right vertebral arteryI63.012Cerebral infarction due to thrombosis of left vertebral arteryI63.013Cerebral infarction due to thrombosis of bilateral vertebral arteriesI63.019Cerebral infarction due to thrombosis of unspecified vertebral artery