| T23.711 | Corrosion of third degree of right thumb (nail) | NON-BILLABLE CODE |
| T23.711A | Corrosion of third degree of right thumb (nail), initial encounter | BILLABLE CODE |
| T23.711D | Corrosion of third degree of right thumb (nail), subsequent encounter | BILLABLE CODE |
| T23.711S | Corrosion of third degree of right thumb (nail), sequela | BILLABLE CODE |
| T23.712 | Corrosion of third degree of left thumb (nail) | NON-BILLABLE CODE |
| T23.712A | Corrosion of third degree of left thumb (nail), initial encounter | BILLABLE CODE |
| T23.712D | Corrosion of third degree of left thumb (nail), subsequent encounter | BILLABLE CODE |
| T23.712S | Corrosion of third degree of left thumb (nail), sequela | BILLABLE CODE |
| T23.719 | Corrosion of third degree of unspecified thumb (nail) | NON-BILLABLE CODE |
| T23.719A | Corrosion of third degree of unspecified thumb (nail), initial encounter | BILLABLE CODE |
| T23.719D | Corrosion of third degree of unspecified thumb (nail), subsequent encounter | BILLABLE CODE |
| T23.719S | Corrosion of third degree of unspecified thumb (nail), sequela | BILLABLE CODE |
