T25.5 - Corrosion of first degree of ankle and foot
T25.52 - Corrosion of first degree of foot
Excludes 2:
-corrosion of first degree of toe(s) (nail) T25.53-)
T25.521 - Corrosion of first degree of right foot
T25.522 - Corrosion of first degree of left foot
T25.529 - Corrosion of first degree of unspecified foot