ICD-10-CM > S00-T88 > T20-T25 > T20 > T20.7 > T20.75 T20.75 Corrosion of third degree of scalp [any part] Non-Billable/Non-Specific Codes T20.75XA..., initial encounterT20.75XD..., subsequent encounterT20.75XS..., sequela