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