ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.7 > T22.71 > T22.711 T22.711 Corrosion of third degree of right forearm Non-Billable/Non-Specific Codes T22.711A..., initial encounterT22.711D..., subsequent encounterT22.711S..., sequela