ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.2 > T23.23 > T23.239 T23.239 Burn of second degree of unspecified multiple fingers (nail), not including thumb Non-Billable/Non-Specific Codes T23.239A..., initial encounterT23.239D..., subsequent encounterT23.239S..., sequela