| T25.531 | Corrosion of first degree of right toe(s) (nail) | NON-BILLABLE CODE |
| T25.531A | Corrosion of first degree of right toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.531D | Corrosion of first degree of right toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.531S | Corrosion of first degree of right toe(s) (nail), sequela | BILLABLE CODE |
| T25.532 | Corrosion of first degree of left toe(s) (nail) | NON-BILLABLE CODE |
| T25.532A | Corrosion of first degree of left toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.532D | Corrosion of first degree of left toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.532S | Corrosion of first degree of left toe(s) (nail), sequela | BILLABLE CODE |
| T25.539 | Corrosion of first degree of unspecified toe(s) (nail) | NON-BILLABLE CODE |
| T25.539A | Corrosion of first degree of unspecified toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.539D | Corrosion of first degree of unspecified toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.539S | Corrosion of first degree of unspecified toe(s) (nail), sequela | BILLABLE CODE |
