ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.3 > T23.32 > T23.329 T23.329 Burn of third degree of unspecified single finger (nail) except thumb Non-Billable/Non-Specific Codes T23.329A..., initial encounterT23.329D..., subsequent encounterT23.329S..., sequela