ICD-10-CM > V00-Y99 > W20-W49 > W44 > W44.F > W44.F4 W44.F4 Insect entering into or through a natural orifice Non-Billable/Non-Specific Codes W44.F4XA..., initial encounterW44.F4XD..., subsequent encounterW44.F4XS..., sequela