ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.1 > T23.13 > T23.132 T23.132 Burn of first degree of multiple left fingers (nail), not including thumb Non-Billable/Non-Specific Codes T23.132A..., initial encounterT23.132D..., subsequent encounterT23.132S..., sequela