ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.7 > T22.70 T22.70 Corrosion of third degree of shoulder and upper limb, except wrist and hand, unspecified site Non-Billable/Non-Specific Codes T22.70XA..., initial encounterT22.70XD..., subsequent encounterT22.70XS..., sequela