583.81 Nephritis and nephropathy, not specified as acute or chronic, in diseases classified elsewhere
Code first underlying disease, as:
amyloidosis (277.30-277.39)
diabetes mellitus (249.4, 250.4)
gonococcal infection (098.19)
Goodpasture's syndrome (446.21)
systemic lupus erythematosus (710.0)
tuberculosis (016.0)
Excludes:
gouty nephropathy (274.10)
syphilitic nephritis (095.4)