ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.0 > T23.02 T23.02 Burn of unspecified degree of single finger (nail) except thumb Non-Billable/Non-Specific Codes T23.021Burn of unspecified degree of single right finger (nail) except thumbT23.021A..., initial encounterT23.021D..., subsequent encounterT23.021S..., sequelaT23.022Burn of unspecified degree of single left finger (nail) except thumbT23.022A..., initial encounterT23.022D..., subsequent encounterT23.022S..., sequelaT23.029Burn of unspecified degree of unspecified single finger (nail) except thumbT23.029A..., initial encounterT23.029D..., subsequent encounterT23.029S..., sequela