2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Endocrine, Nutritional And Metabolic Diseases, And Immunity Disorders 240-279 > Diseases Of Other Endocrine Glands 250-259 > Disorders Of Adrenal Glands 255.* > 2006 ICD-9-CM Diagnosis 255.1 Hyperaldosteronism View the most recent version of ICD-9-CM 255.1 A condition caused by the overproduction of ALDOSTERONE. It is characterized by sodium retention and potassium excretion with resultant HYPERTENSION and HYPOKALEMIA. 255.1 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 255.* hierarchy