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  3. Ch. V00-Y99
  4. Sec. W20-W49
  5. Category W33
Category W33

Accidental rifle, shotgun and larger firearm discharge and malfunction

Clinical Classification Guidelines

7th Character Requirement

  • The appropriate 7th character is to be added to each code from category W33

Specific Diagnosis Codes

Accidental rifle, shotgun and larger firearm discharge
W33.0
Accidental discharge of unspecified larger firearm
W33.00
Accidental discharge of shotgun
W33.01
Accidental discharge of hunting rifle
W33.02
Accidental discharge of machine gun
W33.03
Accidental discharge of other larger firearm
W33.09
Accidental rifle, shotgun and larger firearm malfunction
W33.1
Accidental malfunction of unspecified larger firearm
W33.10
Accidental malfunction of shotgun
W33.11
Accidental malfunction of hunting rifle
W33.12
Accidental malfunction of machine gun
W33.13
Accidental malfunction of other larger firearm
W33.19
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Data updated for October 2025 release.

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