ICD-10-CM > V00-Y99 > W20-W49 > W34 > W34.1 > W34.19 W34.19 Accidental malfunction from other specified firearms Non-Billable/Non-Specific Applicable To Accidental malfunction from Very pistol [flare] Codes W34.19XA..., initial encounterW34.19XD..., subsequent encounterW34.19XS..., sequela