ICD-10-CM > S00-T88 > T20-T25 > T20 > T20.6 > T20.60 T20.60 Corrosion of second degree of head, face, and neck, unspecified site Non-Billable/Non-Specific Codes T20.60XA..., initial encounterT20.60XD..., subsequent encounterT20.60XS..., sequela