ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.2 > T23.24 > T23.249 T23.249 Burn of second degree of unspecified multiple fingers (nail), including thumb Non-Billable/Non-Specific Codes T23.249A..., initial encounterT23.249D..., subsequent encounterT23.249S..., sequela