N14 vs N17
N14 (Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions) compared with N17 (Acute kidney failure), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. N17 carries an Excludes2 note covering N14: “drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| N14Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions | N17Acute kidney failure | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions is a non-billable ICD-10-CM category code (N14). | Acute kidney failure is a non-billable ICD-10-CM category code (N17). |
| Includes | pyelonephritis | — |
| Use additional code | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) | — |
| Code first | poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources