ICD-10-CM > S00-T88 > T20-T25 > T20 > T20.3 > T20.31 > T20.312 T20.312 Burn of third degree of left ear [any part, except ear drum] Non-Billable/Non-Specific Codes T20.312A..., initial encounterT20.312D..., subsequent encounterT20.312S..., sequela