T20.519⚠ Requires 7th Character

Corrosion of first degree of unspecified ear [any part, except ear drum]

Corrosion of first degree of unspecified ear [any part, exce…

7th Character Required

The appropriate 7th character is to be added to each code from category T20

This code is not valid for billing without a 7th character. Append one of the following to T20.519: