T22.73 - Corrosion of third degree of upper arm T22.7 - Corrosion of third degree of shoulder and upper limb, except wrist and hand T22.73 - Corrosion of third degree of upper arm T22.731 - Corrosion of third degree of right upper arm T22.732 - Corrosion of third degree of left upper arm T22.739 - Corrosion of third degree of unspecified upper arm