ICD-10-CM > S00-T88 > T20-T25 > T24 > T24.5 > T24.51 > T24.511 T24.511 Corrosion of first degree of right thigh Non-Billable/Non-Specific Codes T24.511A..., initial encounterT24.511D..., subsequent encounterT24.511S..., sequela