ICD-10-CM External Causes of Injury Index — N
Look up how an injury occurred. External cause codes are secondary codes; they never appear as the principal diagnosis.
11 entries. An unmarked entry without a code is a heading for the entries beneath it.
| Term | Code |
|---|---|
| Nail | |
| Nail, contact with | W45.0 |
| Nail, contact with, gun | W29.4 |
| Nail, embedded in skin | W45.0 |
| Neglect (criminal) (homicidal intent) | X58 |
| Noise (causing injury) (pollution) | W42.9 |
| Noise (causing injury) (pollution), supersonic | W42.0 |
| Nonadministration (of) | |
| Nonadministration (of), drug or biological substance (necessary) | Y63.6 |
| Nonadministration (of), surgical and medical care | Y66 |
| Nosocomial condition | Y95 |
Read from: CMS/CDC ICD-10-CM release files (tabular list, order file, addenda) — FY2027. All data sources · How to read the labels
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources