--- I63.211 Cerebral infarction due to unspecified occlusion or stenosis of right vertebral artery

--- I63.212 Cerebral infarction due to unspecified occlusion or stenosis of left vertebral artery

--- I63.213 Cerebral infarction due to unspecified occlusion or stenosis of bilateral vertebral arteries

--- I63.219 Cerebral infarction due to unspecified occlusion or stenosis of unspecified vertebral artery