ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.3 > T23.34 > T23.342 T23.342 Burn of third degree of multiple left fingers (nail), including thumb Non-Billable/Non-Specific Codes T23.342A..., initial encounterT23.342D..., subsequent encounterT23.342S..., sequela