T24.499 - Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot T24.4 - Corrosion of unspecified degree of lower limb, except ankle and foot T24.49 - Corrosion of unspecified degree of multiple sites of lower limb, except ankle and foot T24.499 - Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot