W34Header code — not billable

Accidental discharge and malfunction from other and unspecified firearms and guns

Short description: Acc disch and malfunct from oth and unsp firearms and guns

Chapter
20. External causes of morbidity
Category
W34
Effective date
October 1, 2026

Related codes in category W34

Frequently asked questions

What is ICD-10 code W34?

W34 is an ICD-10-CM diagnosis code for Accidental discharge and malfunction from other and unspecified firearms and guns.

Is W34 a billable code?

No. W34 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is W34 in?

W34 falls under Chapter 20: External causes of morbidity.

When did W34 become effective?

W34 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to W34?

W34 belongs to category W34, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.