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ICD-10 CM Code T23.43

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

7th Character

The appropriate 7th character is to be added to each code from category T23

A - initial encounter
D - subsequent encounter
S - sequela

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