ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.0 > T23.04 > T23.042 T23.042 Burn of unspecified degree of multiple left fingers (nail), including thumb Non-Billable/Non-Specific Codes T23.042A..., initial encounterT23.042D..., subsequent encounterT23.042S..., sequela