W33.09Accidental discharge of other larger firearm

W33.09 is the ICD-10-CM diagnosis code for accidental discharge of other larger firearm. It belongs to category W33 (accidental rifle, shotgun and larger firearm discharge and malfunction), block W20-W49 (exposure to inanimate mechanical forces) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within W33.0, choose W33.09 (other larger firearm) only when documentation doesn't support a more specific option: unspecified larger firearm (W33.00), shotgun (W33.01), hunting rifle (W33.02) and machine gun (W33.03).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.