ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.3 > T23.34 > T23.349 T23.349 Burn of third degree of unspecified multiple fingers (nail), including thumb Non-Billable/Non-Specific Codes T23.349A..., initial encounterT23.349D..., subsequent encounterT23.349S..., sequela