2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Cerebrovascular Disease 430-438 > Occlusion Of Cerebral Arteries 434.* > 2006 ICD-9-CM Diagnosis 434.90 Cerebral artery occlusion unspecified without cerebral infarction View the most recent version of ICD-9-CM 434.90 434.90 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 434.* hierarchy