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N17.8

N17.8Other acute kidney failure

Billable / specific codeICD-10-CM

N17.8 is a billable, specific ICD-10-CM code for other acute kidney failure. It is valid for submission on a claim.

Excludes1 inherited from the categories above N17.8

These are not written on N17.8, but they bind it: a note on a category applies to every code beneath it. Billing N17.8 with anything listed here is a denial.

Written on N17 Acute kidney failure

  • posttraumatic renal failure (T79.5)

Other codes that can never be billed with N17.8

These codes carry an Excludes1 note pointing at N17.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N17.8 alone.

  • N19Unspecified kidney failure

Risk adjustment

N17.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

N17.8 is named in 25 Medicare coverage policies 14 listing it as supporting medical necessity, and 11 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A58061Billing and Coding: MolDX: Molecular Testing for Solid Organ Allograft Rejectionnot covered
  • A60145Billing and Coding: MolDX: Molecular Testing for Solid Organ Allograft Rejectionnot covered
  • A60146Billing and Coding: MolDX: Molecular Testing for Solid Organ Allograft Rejectionnot covered
  • A60151Billing and Coding: MolDX: Molecular Testing for Solid Organ Allograft Rejectionnot covered

How N17.8 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N17.8.

  • Failure, failedrenalacutespecified NEC

Code history

N17.8 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share N17. If N17.8 is not quite right, the correct code is usually one of these.

Questions about N17.8

Is N17.8 a billable ICD-10-CM code?
Yes. N17.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N17.8 sit in the tabular list?
Diseases of the genitourinary system (N00-N99), in the block Acute kidney failure and chronic kidney disease (N17-N19).
What cannot be coded together with N17.8?
N17.8 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above N17.8 (N17) and apply to it just the same.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.