ICD-10-CM > V00-Y99 > W20-W49 > W44 > W44.A W44.A Battery entering into or through a natural orifice Non-Billable/Non-Specific Codes W44.A0Battery unspecified, entering into or through a natural orificeW44.A0XA..., initial encounterW44.A0XD..., subsequent encounterW44.A0XS..., sequelaW44.A1Button battery entering into or through a natural orificeW44.A1XA..., initial encounterW44.A1XD..., subsequent encounterW44.A1XS..., sequelaW44.A9Other batteries entering into or through a natural orificeW44.A9XA..., initial encounterW44.A9XD..., subsequent encounterW44.A9XS..., sequela