The ICD-9 code range NEPHRITIS, NEPHROTIC SYNDROME, AND NEPHROSIS for 580-589 is medical classification list by the World Health Organization (WHO).
Nephritis and nephropathy not specified as acute or chronic
Acute renal failure
Chronic renal failure
Renal failure unspecified
Renal sclerosis unspecified
Disorders resulting from impaired renal function
Small kidney of unknown cause