ICD-10-CM > V00-Y99 > W20-W49 > W33 > W33.0 W33.0 Accidental rifle, shotgun and larger firearm discharge Non-Billable/Non-Specific Codes W33.00Accidental discharge of unspecified larger firearmW33.00XA..., initial encounterW33.00XD..., subsequent encounterW33.00XS..., sequelaW33.01Accidental discharge of shotgunW33.01XA..., initial encounterW33.01XD..., subsequent encounterW33.01XS..., sequelaW33.02Accidental discharge of hunting rifleW33.02XA..., initial encounterW33.02XD..., subsequent encounterW33.02XS..., sequelaW33.03Accidental discharge of machine gunW33.03XA..., initial encounterW33.03XD..., subsequent encounterW33.03XS..., sequelaW33.09Accidental discharge of other larger firearmW33.09XA..., initial encounterW33.09XD..., subsequent encounterW33.09XS..., sequela