N17 vs N19
N17 (Acute kidney failure) compared with N19 (Unspecified kidney failure), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. N19 carries an Excludes1 note covering N17: “acute kidney failure (N17.-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| N17Acute kidney failure | N19Unspecified kidney failure | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Acute kidney failure is a non-billable ICD-10-CM category code (N17). | Unspecified kidney failure is a billable ICD-10-CM diagnosis code (N19). |
| Includes | — | Uremia NOS |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources