T23.73 - Corrosion of third degree of multiple fingers (nail), not including thumb T23.7 - Corrosion of third degree of wrist and hand T23.73 - Corrosion of third degree of multiple fingers (nail), not including thumb T23.731 - Corrosion of third degree of multiple right fingers (nail), not including thumb T23.732 - Corrosion of third degree of multiple left fingers (nail), not including thumb T23.739 - Corrosion of third degree of unspecified multiple fingers (nail), not including thumb