I63.0 - Cerebral infarction due to thrombosis of precerebral arteries
I63.01 - Cerebral infarction due to thrombosis of vertebral artery
I63.011 - Cerebral infarction due to thrombosis of right vertebral artery
I63.012 - Cerebral infarction due to thrombosis of left vertebral artery
I63.019 - Cerebral infarction due to thrombosis of unspecified vertebral artery