ICD-10-CM > S00-T88 > T20-T25 > T20 > T20.1 > T20.10 T20.10 Burn of first degree of head, face, and neck, unspecified site Non-Billable/Non-Specific Codes T20.10XA..., initial encounterT20.10XD..., subsequent encounterT20.10XS..., sequela