T23.49 - Corrosion of unspecified degree of multiple sites of wrist and hand T23.4 - Corrosion of unspecified degree of wrist and hand T23.49 - Corrosion of unspecified degree of multiple sites of wrist and hand T23.491 - Corrosion of unspecified degree of multiple sites of right wrist and hand T23.492 - Corrosion of unspecified degree of multiple sites of left wrist and hand T23.499 - Corrosion of unspecified degree of multiple sites of unspecified wrist and hand