N17

Non-Billable
ChapterN00–N99
Rankcategory
Official Description

Acute kidney failure

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 14: Diseases of the Genitourinary System (N00-N99).

CH14 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

N17-N19 Parent Instructions

Excludes2(Not included here)
  • congenital renal failure (P96.0)
  • drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)
  • extrarenal uremia (R39.2)
  • hemolytic-uremic syndrome (D59.3-)
  • hepatorenal syndrome (K76.7)
  • postpartum hepatorenal syndrome (O90.41)
  • posttraumatic renal failure (T79.5)
  • prerenal uremia (R39.2)
  • renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)
  • renal failure following labor and delivery (O90.41)
  • renal failure postprocedural (N99.0)

Instructional Notes

Excludes1(Not coded here)
  • posttraumatic renal failure (T79.5)
Code Also
  • associated underlying condition

Clinical Hierarchy

CH14Diseases of the genitourinary system (N00-N99)
N17-N19Acute kidney failure and chronic kidney disease (N17-N19)
N17Acute kidney failure
N17.0Acute kidney failure with tubular necrosis
N17.1Acute kidney failure with acute cortical necrosis
N17.2Acute kidney failure with medullary necrosis
N17.8Other acute kidney failure
N17.9Acute kidney failure, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to N17:

blockN17-N19
Acute kidney failure and chronic kidney disease (N17-N19)
View context instructions
chapterCH14
Diseases of the genitourinary system (N00-N99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to N17. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Failure, failed7 unique routes
kidney
acute→N17
renal(6 variants)
acute→N17(5 variants)
specified NEC→N17
with(3 variants)
cortical necrosis→N17
medullary necrosis→N17
tubular necrosis→N17
with
tubular necrosis (acute)→N17
Injury1 unique routes
kidney
acute (nontraumatic)→N17
Necrosis, necrotic (ischemic)9 unique routes
cortical (acute) (renal)→N17
kidney (bilateral)(5 variants)
acute→N17
cortical (acute) (bilateral)→N17
medullary (bilateral) (in acute renal failure) (papillary)→N17
papillary (bilateral) (in acute renal failure)→N17
tubular→N17
medullary (acute) (renal)→N17
papillary (acute) (renal)→N17
tubular (acute) (anoxic) (renal) (toxic)→N17
Nephropathy3 unique routes
analgesic
with medullary necrosis, acute→N17
phenacetin→N17
vasomotor→N17
Nephrosis, nephrotic (Epstein's) (syndrome) (congenital)1 unique routes
tubular (acute)→N17
Papillitis2 unique routes
necrotizing, kidney→N17
renal, necrotizing→N17
Shock1 unique routes
kidney→N17
Stasis1 unique routes
renal
tubular→N17

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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