W33 — Accidental rifle, shotgun and larger firearm discharge and malfunction
Part of Chapter 20: External causes of morbidity , block Exposure to inanimate mechanical forces (W20-W49) .
Official Notes
Includes
rifle, shotgun and larger firearm discharge and malfunction NOS
Excludes1
accidental handgun discharge and malfunction ( W32 .-)
Excludes1
assault by rifle, shotgun and larger firearm discharge ( X94 )
Excludes1
firearm discharge involving legal intervention ( Y35.0- )
Excludes1
firearm discharge involving military or war operations ( Y36.4- )
Excludes1
intentional self-harm by rifle, shotgun and larger firearm discharge ( X73 )
7th Character
The appropriate 7th character is to be added to each code from category W33
7th Character
A - initial encounter
7th Character
D - subsequent encounter
7th Character
S - sequela
Child Codes
FY 2027 effective October 1, 2026 · CDC NCHS and CMS