| T25.631 | Corrosion of second degree of right toe(s) (nail) | NON-BILLABLE CODE |
| T25.631A | Corrosion of second degree of right toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.631D | Corrosion of second degree of right toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.631S | Corrosion of second degree of right toe(s) (nail), sequela | BILLABLE CODE |
| T25.632 | Corrosion of second degree of left toe(s) (nail) | NON-BILLABLE CODE |
| T25.632A | Corrosion of second degree of left toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.632D | Corrosion of second degree of left toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.632S | Corrosion of second degree of left toe(s) (nail), sequela | BILLABLE CODE |
| T25.639 | Corrosion of second degree of unspecified toe(s) (nail) | NON-BILLABLE CODE |
| T25.639A | Corrosion of second degree of unspecified toe(s) (nail), initial encounter | BILLABLE CODE |
| T25.639D | Corrosion of second degree of unspecified toe(s) (nail), subsequent encounter | BILLABLE CODE |
| T25.639S | Corrosion of second degree of unspecified toe(s) (nail), sequela | BILLABLE CODE |
