2008 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.* > 2008 ICD-9-CM Diagnosis 255.5 Other adrenal hypofunction  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 255.5 can be accessed here. 255.5 is a specific code that can be used to specify a diagnosis 255.5 contains 6 index entries View the ICD-9-CM Volume 1 255.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 255.5 also known as: Adrenal medullary insufficiency 255.5 excludes: Waterhouse-Friderichsen syndrome (meningococcal) (036.3) Index entries containing 255.5: Decrease, decreased function adrenal (cortex) 255.41 medulla 255.5 Hypofunction adrenal (gland) 255.41 medulla 255.5 specified NEC 255.5 Insufficiency, insufficient adrenal (gland) (acute) (chronic) 255.41 medulla 255.5 specified site NEC 255.5 suprarenal 255.41 medulla 255.5