ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.1 > T23.14 > T23.149 T23.149 Burn of first degree of unspecified multiple fingers (nail), including thumb Non-Billable/Non-Specific Codes T23.149A..., initial encounterT23.149D..., subsequent encounterT23.149S..., sequela