ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.1 > T23.14 > T23.142 T23.142 Burn of first degree of multiple left fingers (nail), including thumb Non-Billable/Non-Specific Codes T23.142A..., initial encounterT23.142D..., subsequent encounterT23.142S..., sequela