ICD-10-CM > V00-Y99 > W20-W49 > W33 > W33.0 > W33.09 W33.09 Accidental discharge of other larger firearm Non-Billable/Non-Specific Applicable To Discharge of other larger firearm NOS Codes W33.09XA..., initial encounterW33.09XD..., subsequent encounterW33.09XS..., sequela