2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Diseases Of Veins And Lymphatics, And Other Diseases Of Circulatory System 451-459 > Hypotension 458.* > 2006 ICD-9-CM Diagnosis 458.1 Chronic hypotension View the most recent version of ICD-9-CM 458.1 458.1 is a specific code that can be used to specify a diagnosis 458.1 contains 2 index entries View the ICD-9-CM Volume 1 458.* hierarchy Alternate Terminology Permanent idiopathic hypotension  Index entries containing 458.1: Hypotension (arterial) (constitutional) 458.9 chronic 458.1 permanent idiopathic 458.1