2026 ICD-10-CM N17: Acute kidney failure

Log in Start free trial

N17 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools

ICD-10-CM Code View

HCC Buddy Code Card

Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.

Code lookupN17

Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Diseases of the genitourinary system (N00-N99) / Acute kidney failure and chronic kidney disease (N17-N19)

N17

Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidance

Acute kidney failure

Overview Risk Models Code Book Documentation Audit Notes Edition comparison

CMS-HCC V28

N/A

—

Not risk-adjusted for this model/period.

Not mapped

CMS-HCC V24

N/A

—

Not risk-adjusted for this model/period.

Not mapped

ACA/HHS

N/A

—

Not risk-adjusted for this model/period.

Not mapped

ESRD/PACE

N/A

—

Not risk-adjusted for this model/period.

Not mapped

RXHCC

N/A

—

Not risk-adjusted for this model/period.

Not mapped

Code Book Path

Official

N1Acute kidney failure and chronic kidney disease (N17-N19)N17Acute kidney failure

Inclusion Terms

Official

No inclusion terms are included in this display for N17. Check the code and parent instructions in the Code Book.

Excludes 2

Official

certain conditions originating in the perinatal period (P04-P96)Inherited from N00-N99, N17-N19
certain infectious and parasitic diseases (A00-B99)Inherited from N00-N99, N17-N19
complications of pregnancy, childbirth and the puerperium (O00-O9A)Inherited from N00-N99, N17-N19
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Inherited from N00-N99, N17-N19
endocrine, nutritional and metabolic diseases (E00-E88)Inherited from N00-N99, N17-N19
injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from N00-N99, N17-N19
neoplasms (C00-D49)Inherited from N00-N99, N17-N19
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)Inherited from N00-N99, N17-N19
congenital renal failure (P96.0)Inherited from N00-N99, N17-N19
drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)Inherited from N00-N99, N17-N19
extrarenal uremia (R39.2)Inherited from N00-N99, N17-N19
hemolytic-uremic syndrome (D59.3-)Inherited from N00-N99, N17-N19
hepatorenal syndrome (K76.7)Inherited from N00-N99, N17-N19
postpartum hepatorenal syndrome (O90.41)Inherited from N00-N99, N17-N19
posttraumatic renal failure (T79.5)Inherited from N00-N99, N17-N19
prerenal uremia (R39.2)Inherited from N00-N99, N17-N19
renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)Inherited from N00-N99, N17-N19
renal failure following labor and delivery (O90.41)Inherited from N00-N99, N17-N19
renal failure postprocedural (N99.0)Inherited from N00-N99, N17-N19

Related Codes

Official

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

Includes

Official

No Includes notes are included in this display for N17. Check the code and parent instructions in the Code Book.

Excludes 1

Official

posttraumatic renal failure (T79.5)

Code First

Official

No Code First sequencing instructions are included in this display for N17. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for N17. Check the code and parent instructions in the Code Book.

Code Also

Official

associated underlying condition

Served edition: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Code: N17
Description: Acute kidney failure
HCC (V28): No CMS-HCC V28 mapping
RAF reference coefficient: —
Billable: No
Payment year: 2026

Coder workflow notes

Get the V28 mapping + MEAT cheat sheet

One printable reference: check representative V28 mappings and the documentation reminders your note needs. Free, no card.

Free PDF. No card. Unsubscribe anytime.

What This Code Means

N17 is the ICD-10-CM diagnosis code for acute kidney failure. N17 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering acute kidney failure and chronic kidney disease (n17-n19).

Header codes like N17 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for N17 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Excludes 1, Do NOT code together

posttraumatic renal failure (T79.5)

Code Also

associated underlying condition

Child Codes

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

Code Hierarchy

└N17Acute kidney failure

└N17Acute kidney failure

More on N17

Referenced in blog posts

In the news

An AI hit 91% predicting ICD categories. Its scoring counted sepsis for a UTI as correct.

Work N17 in HCC Buddy

Open N17 in the Code Book for the full Index-to-Tabular path, MEAT checklist, and V28 HCC mapping, or in the Encoder to code from a keyword search. Pro includes 7 days to try everything, no card required.

Open in Code Book Open in Encoder Start Pro