2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Genitourinary System 580-629 > Nephritis, Nephrotic Syndrome, And Nephrosis 580-589 > ICD-9-CM Diagnosis 589 Small kidney of unknown cause 589 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 589.0 Unilateral small kidney 589.0 is a specific code that can be used to specify a diagnosis 589.0 contains 1 index entry ICD-9-CM Diagnosis 589.1 Bilateral small kidneys 589.1 is a specific code that can be used to specify a diagnosis 589.1 contains 1 index entry ICD-9-CM Diagnosis 589.9 Small kidney unspecified 589.9 is a specific code that can be used to specify a diagnosis 589.9 contains 1 index entry