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necrosis NOS
- Renal cortical necrosis
- N17.2 Acute kidney failure with medullary necrosis
- Medullary [papillary] necrosis NOS
- Acute medullary [papillary] necrosis
- Renal medullary [papillary] necrosis
- N17.8 Other acute kidney failure
- N17.9 Acute kidney failure, unspecified
- Acute kidney injury (nontraumatic)
- Excludes2: traumatic kidney injury (S37.0-)
N18 Chronic kidney disease (CKD)
- Code first any associated:
- diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22)
- hypertensive chronic kidney disease (I12.-, I13.-)
- Use additional code to identify kidney transplant status, if applicable, (Z94.0)
- N18.1 Chronic kidney disease, stage I
- N18.2 Chronic kidney disease, stage II (mild)
- N18.3 Chronic kidney disease, stage III (moderate)
- N18.4 Chronic kidney disease, stage IV (severe)
- N18.5 Chronic kidney disease, stage V
- Excludes1: chronic kidney disease, stage V requiring chronic dialysis (N18.6)
- N18.6 End stage renal disease
- Chronic kidney disease requiring chronic dialysis
- Use additional code to identify dialysis status (Z99.2)
- N18.9 Chronic kidney disease, unspecified
- Chronic renal disease
- Chronic renal failure NOS
- Chronic renal insufficieny
- Chronic uremia
- Renal disease NOS
N19 Unspecified kidney failure
- Includes: uremia NOS
- Excludes1: acute kidney failure (N17.-)
- chronic kidney disease (N18.-)
- chronic uremia (N18.9)
- extrarenal uremia (R39.2)
- prerenal uremia (R39.2)
- renal insufficiency (acute) (N28.9)
- uremia of newborn (P96.0)
=Urolithiasis (
