T25.4 - Corrosion of unspecified degree of ankle and foot
T25.43 - Corrosion of unspecified degree of toe(s) (nail)
T25.431 - Corrosion of unspecified degree of right toe(s) (nail)
T25.432 - Corrosion of unspecified degree of left toe(s) (nail)
T25.439 - Corrosion of unspecified degree of unspecified toe(s) (nail)