T23.63 - Corrosion of second degree of multiple fingers (nail), not including thumb T23.6 - Corrosion of second degree of wrist and hand T23.63 - Corrosion of second degree of multiple fingers (nail), not including thumb T23.631 - Corrosion of second degree of multiple right fingers (nail), not including thumb T23.632 - Corrosion of second degree of multiple left fingers (nail), not including thumb T23.639 - Corrosion of second degree of unspecified multiple fingers (nail), not including thumb