T23.53 - Corrosion of first degree of multiple fingers (nail), not including thumb T23.5 - Corrosion of first degree of wrist and hand T23.53 - Corrosion of first degree of multiple fingers (nail), not including thumb T23.531 - Corrosion of first degree of multiple right fingers (nail), not including thumb T23.532 - Corrosion of first degree of multiple left fingers (nail), not including thumb T23.539 - Corrosion of first degree of unspecified multiple fingers (nail), not including thumb