ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.6 > T22.61 > T22.611 T22.611 Corrosion of second degree of right forearm Non-Billable/Non-Specific Codes T22.611A..., initial encounterT22.611D..., subsequent encounterT22.611S..., sequela