| T25.41 | Corrosion of unspecified degree of ankle | NON-BILLABLE CODE |
| T25.411 | Corrosion of unspecified degree of right ankle | NON-BILLABLE CODE |
| T25.411A | Corrosion of unspecified degree of right ankle, initial encounter | BILLABLE CODE |
| T25.411D | Corrosion of unspecified degree of right ankle, subsequent encounter | BILLABLE CODE |
| T25.411S | Corrosion of unspecified degree of right ankle, sequela | BILLABLE CODE |
| T25.412 | Corrosion of unspecified degree of left ankle | NON-BILLABLE CODE |
| T25.412A | Corrosion of unspecified degree of left ankle, initial encounter | BILLABLE CODE |
| T25.412D | Corrosion of unspecified degree of left ankle, subsequent encounter | BILLABLE CODE |
| T25.412S | Corrosion of unspecified degree of left ankle, sequela | BILLABLE CODE |
| T25.419 | Corrosion of unspecified degree of unspecified ankle | NON-BILLABLE CODE |
| T25.419A | Corrosion of unspecified degree of unspecified ankle, initial encounter | BILLABLE CODE |
| T25.419D | Corrosion of unspecified degree of unspecified ankle, subsequent encounter | BILLABLE CODE |
| T25.419S | Corrosion of unspecified degree of unspecified ankle, sequela | BILLABLE CODE |
| T25.42 | Corrosion of unspecified degree of foot | NON-BILLABLE CODE |
| T25.421 | Corrosion of unspecified degree of right foot | NON-BILLABLE CODE |
| T25.421A | Corrosion of unspecified degree of right foot, initial encounter | BILLABLE CODE |
| T25.421D | Corrosion of unspecified degree of right foot, subsequent encounter | BILLABLE CODE |
| T25.421S | Corrosion of unspecified degree of right foot, sequela | BILLABLE CODE |
| T25.422 | Corrosion of unspecified degree of left foot | NON-BILLABLE CODE |
| T25.422A | Corrosion of unspecified degree of left foot, initial encounter | BILLABLE CODE |
| T25.422D | Corrosion of unspecified degree of left foot, subsequent encounter | BILLABLE CODE |
| T25.422S | Corrosion of unspecified degree of left foot, sequela | BILLABLE CODE |
| T25.429 | Corrosion of unspecified degree of unspecified foot | NON-BILLABLE CODE |
| T25.429A | Corrosion of unspecified degree of unspecified foot, initial encounter | BILLABLE CODE |
| T25.429D | Corrosion of unspecified degree of unspecified foot, subsequent encounter | BILLABLE CODE |
| T25.429S | Corrosion of unspecified degree of unspecified foot, sequela | BILLABLE CODE |
| T25.43 | Corrosion of unspecified degree of toe(s) (nail) | NON-BILLABLE CODE |
| T25.431 | Corrosion of unspecified degree of right toe(s) (nail) | NON-BILLABLE CODE |
| T25.431A | Corrosion of unspecified degree of right toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.431D | Corrosion of unspecified degree of right toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.431S | Corrosion of unspecified degree of right toe(s) (nail), sequela | BILLABLE CODE |
| T25.432 | Corrosion of unspecified degree of left toe(s) (nail) | NON-BILLABLE CODE |
| T25.432A | Corrosion of unspecified degree of left toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.432D | Corrosion of unspecified degree of left toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.432S | Corrosion of unspecified degree of left toe(s) (nail), sequela | BILLABLE CODE |
| T25.439 | Corrosion of unspecified degree of unspecified toe(s) (nail) | NON-BILLABLE CODE |
| T25.439A | Corrosion of unspecified degree of unspecified toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.439D | Corrosion of unspecified degree of unspecified toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.439S | Corrosion of unspecified degree of unspecified toe(s) (nail), sequela | BILLABLE CODE |
| T25.49 | Corrosion of unspecified degree of multiple sites of ankle and foot | NON-BILLABLE CODE |
| T25.491 | Corrosion of unspecified degree of multiple sites of right ankle and foot | NON-BILLABLE CODE |
| T25.491A | Corrosion of unspecified degree of multiple sites of right ankle and foot, initial encounter | BILLABLE CODE |
| T25.491D | Corrosion of unspecified degree of multiple sites of right ankle and foot, subsequent encounter | BILLABLE CODE |
| T25.491S | Corrosion of unspecified degree of multiple sites of right ankle and foot, sequela | BILLABLE CODE |
| T25.492 | Corrosion of unspecified degree of multiple sites of left ankle and foot | NON-BILLABLE CODE |
| T25.492A | Corrosion of unspecified degree of multiple sites of left ankle and foot, initial encounter | BILLABLE CODE |
| T25.492D | Corrosion of unspecified degree of multiple sites of left ankle and foot, subsequent encounter | BILLABLE CODE |
| T25.492S | Corrosion of unspecified degree of multiple sites of left ankle and foot, sequela | BILLABLE CODE |
| T25.499 | Corrosion of unspecified degree of multiple sites of unspecified ankle and foot | NON-BILLABLE CODE |
| T25.499A | Corrosion of unspecified degree of multiple sites of unspecified ankle and foot, initial encounter | BILLABLE CODE |
| T25.499D | Corrosion of unspecified degree of multiple sites of unspecified ankle and foot, subsequent encounter | BILLABLE CODE |
| T25.499S | Corrosion of unspecified degree of multiple sites of unspecified ankle and foot, sequela | BILLABLE CODE |
