ICD-10-CM External Cause Index · FY 2026 Letter N

External Cause Index Terms Starting With N ICD-10-CM

The letter N section of the FY 2026 External Cause of Injuries Index carries 5 main terms, from Nail to Nosocomial condition. Terms with a direct code link straight to the code page, cross references point to the main term that holds the codes, and terms with a handful of sub-entries render in full right here. The largest terms open their own full index page.

✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026

Main Terms

Index Entries

Direct Codes

Cross-refs

A B C D E F G H I J K L MNO P R S T U V W

5 of 5 shown

NailSub-entries
contact with W45.0 Non-billable
gun W29.4 Non-billable
embedded in skin W45.0 Non-billable
Neglect (criminal) (homicidal intent)Code X58 Non-billable
Noise (causing injury) (pollution)Sub-entries W42.9 Non-billable
supersonic W42.0 Non-billable
Nonadministration (of)Sub-entries
drug or biological substance (necessary) Y63.6
surgical and medical care Y66
Nosocomial conditionCode Y95

Related References

External Cause of Injuries Index Index to Diseases and Injuries ICD-10-CM Code Lookup

Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM External Cause of Injuries Index release files, effective October 1, 2025 through September 30, 2026.