ICD-10-CM > S00-T88 > T20-T25 > T24 > T24.4 > T24.41 > T24.411 T24.411 Corrosion of unspecified degree of right thigh Non-Billable/Non-Specific Codes T24.411A..., initial encounterT24.411D..., subsequent encounterT24.411S..., sequela