ICD-10-CM > V00-Y99 > W20-W49 > W44 > W44.A > W44.A1 W44.A1 Button battery entering into or through a natural orifice Non-Billable/Non-Specific Codes W44.A1XA..., initial encounterW44.A1XD..., subsequent encounterW44.A1XS..., sequela