T25.53 - Corrosion of first degree of toe(s) (nail) T25.5 - Corrosion of first degree of ankle and foot T25.53 - Corrosion of first degree of toe(s) (nail) T25.531 - Corrosion of first degree of right toe(s) (nail) T25.532 - Corrosion of first degree of left toe(s) (nail) T25.539 - Corrosion of first degree of unspecified toe(s) (nail)