T25.4 - Corrosion of unspecified degree of ankle and foot
T25.42 - Corrosion of unspecified degree of foot
Excludes 2:
-corrosion of unspecified degree of toe(s) (nail) T25.43-)
T25.421 - Corrosion of unspecified degree of right foot
T25.422 - Corrosion of unspecified degree of left foot
T25.429 - Corrosion of unspecified degree of unspecified foot