T22.71 - Corrosion of third degree of forearm T22.7 - Corrosion of third degree of shoulder and upper limb, except wrist and hand T22.71 - Corrosion of third degree of forearm T22.711 - Corrosion of third degree of right forearm T22.712 - Corrosion of third degree of left forearm T22.719 - Corrosion of third degree of unspecified forearm