2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Genitourinary System 580-629 > Nephritis, Nephrotic Syndrome, And Nephrosis 580-589 > Small Kidney Of Unknown Cause 589.* > 2008 ICD-9-CM Diagnosis 589.0 Unilateral small kidney  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 Therefore, this code may be out of date.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 589.0 can be accessed here. 589.0 is a specific code that can be used to specify a diagnosis 589.0 contains 1 index entry View the ICD-9-CM Volume 1 589.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 589.0: Small, smallness kidney, unknown cause 589.9 unilateral 589.0