Arterial aneurysm or dissection, excluding aorta

**Exclusions:** - ruptured cerebral aneurysm - aneurysm (of): aorta - aneurysm (of): arteriovenous NOS acquired - Cerebral aneurysm, nonruptured - Coronary artery aneurysm - aneurysm of heart - Aneurysm of pulmonary artery - aneurysm of retinal - aneurysm of varicose - dissection of precerebral artery, congenital (nonruptured)