ICD-10-CM 2027
ICD-10 code for renal failure
From the official ICD-10-CM alphabetic index entry “Failure, failed › renal”. Page updated September 29, 2026.
About coding renal failure
The ICD-10-CM code for renal failure is N19 (Unspecified kidney failure). The official index lists 14 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N19.
Don't report N19 together with the conditions in its Excludes1 note: acute kidney failure (N17.-), chronic kidney disease (N18.-), chronic uremia (N18.9), extrarenal uremia (R39.2) and 3 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 673 (Other Kidney and Urinary Tract Procedures with MCC, relative weight 4.2525), DRG 674 (Other Kidney and Urinary Tract Procedures with CC, relative weight 2.2504), DRG 675 (Other Kidney and Urinary Tract Procedures without CC/MCC, relative weight 1.5887), DRG 682 (Renal Failure with MCC, relative weight 1.4656), DRG 683 (Renal Failure with CC, relative weight 0.8647) and DRG 684 (Renal Failure without CC/MCC, relative weight 0.6003), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific renal failure codes (official index)
- with
- tubular necrosis (acute) N17.0 — Acute kidney failure with tubular necrosis
- acute N17.9 — Acute kidney failure, unspecified
- with
- cortical necrosis N17.1 — Acute kidney failure with acute cortical necrosis
- medullary necrosis N17.2 — Acute kidney failure with medullary necrosis
- tubular necrosis N17.0 — Acute kidney failure with tubular necrosis
- specified NEC N17.8 — Other acute kidney failure
- chronic N18.9 — Chronic kidney disease, unspecified
- hypertensive
- congenital P96.0 — Congenital renal failure
- end stage (chronic) N18.6 — End stage renal disease
- due to hypertension I12.0 — Hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease
- following
- abortion
- crushing T79.5 — Traumatic anuria
- ectopic or molar pregnancy O08.4 — Renal failure following ectopic and molar pregnancy
- labor and delivery (acute) O90.49 — Other postpartum acute kidney failure
- hypertensive
- postprocedural N99.0 — Postprocedural (acute) (chronic) kidney failure
Don't confuse with (Excludes1 for N19)
Common questions about renal failure ICD-10 codes
What is the ICD-10 code for renal failure?
- N19 — Unspecified kidney failure. More specific codes apply when the documentation supports them: N17.0, N17.9, N17.1, N17.2 and others below.
What is the ICD-10 code for acute renal failure?
- N17.9 — Acute kidney failure, unspecified.
What is the ICD-10 code for chronic renal failure?
- N18.9 — Chronic kidney disease, unspecified.
What is the ICD-10 code for congenital renal failure?
- P96.0 — Congenital renal failure.
What is the ICD-10 code for end stage renal failure?
- N18.6 — End stage renal disease.
What is the ICD-10 code for postprocedural renal failure?
- N99.0 — Postprocedural (acute) (chronic) kidney failure.
Is N19 billable?
- Yes. N19 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N19 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N19 as a principal diagnosis.
Is N19 a CC or MCC?
- No. N19 is neither a CC nor an MCC under MS-DRG v44.0.