N17.0 Acute kidney failure with tubular necrosis

The ICD-10-CM code for Acute kidney failure with tubular necrosis is N17.0 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

14: Diseases of the genitourinary system (N00-N99)

Section

N17-N19: Acute kidney failure and chronic kidney disease (N17-N19)

Category N17

6 codes (5 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to N17.0:

• Necrosis, necrotic (ischemic) › tubular (acute) (anoxic) (renal) (toxic)
• Shock › kidney
• Nephrosis, nephrotic (Epstein's) (syndrome) (congenital) › tubular (acute)
• Nephropathy › vasomotor
• Stasis › renal › tubular
• Necrosis, necrotic (ischemic) › kidney (bilateral) › tubular
• Syndrome › shock (traumatic) › kidney
• Failure, failed › renal › with › tubular necrosis (acute)

Inclusion Terms

• Acute tubular necrosis
• Renal tubular necrosis
• Tubular necrosis NOS

U.S. Hospital Utilization

• An estimated 553,595 U.S. inpatient stays in 2023 included N17.0 among the documented diagnoses.
• 53,800 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

CKD staging and code assignment (N18.-)

The ICD-10-CM classifies CKD based on severity. The severity of CKD is designated by stages 1-5. Stage 2, code N18.2, equates to mild CKD; stage 3, codes N18.30-N18.32, equate to moderate CKD; and stage 4, code N18.4, equates to severe CKD. Code N18.6, End stage renal disease (ESRD), is assigned when the provider has documented end- stage renal disease (ESRD).

CKD stage plus ESRD: assign N18.6 only

If both a stage of CKD and ESRD are documented, assign code N18.6 only.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference N17.0 with the canonical source and edition:

N17.0 — Acute kidney failure with tubular necrosis. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/N17.0

Canonical URL: https://icd10codingpro.com/codes/N17.0