T23.50 - Corrosion of first degree of hand, unspecified site T23.5 - Corrosion of first degree of wrist and hand T23.50 - Corrosion of first degree of hand, unspecified site T23.501 - Corrosion of first degree of right hand, unspecified site T23.502 - Corrosion of first degree of left hand, unspecified site T23.509 - Corrosion of first degree of unspecified hand, unspecified site