T23.54 - Corrosion of first degree of multiple fingers (nail), including thumb T23.5 - Corrosion of first degree of wrist and hand T23.54 - Corrosion of first degree of multiple fingers (nail), including thumb T23.541 - Corrosion of first degree of multiple right fingers (nail), including thumb T23.542 - Corrosion of first degree of multiple left fingers (nail), including thumb T23.549 - Corrosion of first degree of unspecified multiple fingers (nail), including thumb