2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Cerebrovascular Disease 430-438 > 2006 ICD-9-CM Diagnosis 438 Late effects of cerebrovascular disease View the most recent version of ICD-9-CM 438 438 is a non-specific code that cannot be used to specify a diagnosis Note : This category is to be used to indicate conditions in 430-437 as the cause of late effects. The "late effects" include conditions specified as such, or as sequelae, which may occur at any time after the onset of the causal condition.