T23.43 - Corrosion of unspecified degree of multiple fingers (nail), not including thumb T23.4 - Corrosion of unspecified degree of wrist and hand T23.43 - Corrosion of unspecified degree of multiple fingers (nail), not including thumb T23.431 - Corrosion of unspecified degree of multiple right fingers (nail), not including thumb T23.432 - Corrosion of unspecified degree of multiple left fingers (nail), not including thumb T23.439 - Corrosion of unspecified degree of unspecified multiple fingers (nail), not including thumb