ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.0 > T23.01 > T23.011 T23.011 Burn of unspecified degree of right thumb (nail) Non-Billable/Non-Specific Codes T23.011A..., initial encounterT23.011D..., subsequent encounterT23.011S..., sequela