preferred_name: Corrosion of second degree of left ear [any part, except ear drum], initial encounter
preferred_name_lc: corrosion of second degree of left ear [any part, except ear drum], initial encounter
label: Corrosion of second degree of left ear [any part, except ear drum], initial encounter
label_lc: corrosion of second degree of left ear [any part, except ear drum], initial encounter