| T23.311 | Burn of third degree of right thumb (nail) | NON-BILLABLE CODE |
| T23.311A | Burn of third degree of right thumb (nail), initial encounter | BILLABLE CODE |
| T23.311D | Burn of third degree of right thumb (nail), subsequent encounter | BILLABLE CODE |
| T23.311S | Burn of third degree of right thumb (nail), sequela | BILLABLE CODE |
| T23.312 | Burn of third degree of left thumb (nail) | NON-BILLABLE CODE |
| T23.312A | Burn of third degree of left thumb (nail), initial encounter | BILLABLE CODE |
| T23.312D | Burn of third degree of left thumb (nail), subsequent encounter | BILLABLE CODE |
| T23.312S | Burn of third degree of left thumb (nail), sequela | BILLABLE CODE |
| T23.319 | Burn of third degree of unspecified thumb (nail) | NON-BILLABLE CODE |
| T23.319A | Burn of third degree of unspecified thumb (nail), initial encounter | BILLABLE CODE |
| T23.319D | Burn of third degree of unspecified thumb (nail), subsequent encounter | BILLABLE CODE |
| T23.319S | Burn of third degree of unspecified thumb (nail), sequela | BILLABLE CODE |
