ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.3 > T23.32 T23.32 Burn of third degree of single finger (nail) except thumb Non-Billable/Non-Specific Codes T23.321Burn of third degree of single right finger (nail) except thumbT23.321A..., initial encounterT23.321D..., subsequent encounterT23.321S..., sequelaT23.322Burn of third degree of single left finger (nail) except thumbT23.322A..., initial encounterT23.322D..., subsequent encounterT23.322S..., sequelaT23.329Burn of third degree of unspecified single finger (nail) except thumbT23.329A..., initial encounterT23.329D..., subsequent encounterT23.329S..., sequela