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ICD-10 CM Code T23.64

T23.64 Corrosion of second degree of multiple fingers (nail), including thumb

T23.641 Corrosion of second degree of multiple right fingers (nail), including thumb
T23.642 Corrosion of second degree of multiple left fingers (nail), including thumb
T23.649 Corrosion of second degree of unspecified multiple fingers (nail), 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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