| T23.631 | Corrosion of second degree of multiple right fingers (nail), not including thumb | NON-BILLABLE CODE |
| T23.631A | Corrosion of second degree of multiple right fingers (nail), not including thumb, initial encounter | BILLABLE CODE |
| T23.631D | Corrosion of second degree of multiple right fingers (nail), not including thumb, subsequent encounter | BILLABLE CODE |
| T23.631S | Corrosion of second degree of multiple right fingers (nail), not including thumb, sequela | BILLABLE CODE |
| T23.632 | Corrosion of second degree of multiple left fingers (nail), not including thumb | NON-BILLABLE CODE |
| T23.632A | Corrosion of second degree of multiple left fingers (nail), not including thumb, initial encounter | BILLABLE CODE |
| T23.632D | Corrosion of second degree of multiple left fingers (nail), not including thumb, subsequent encounter | BILLABLE CODE |
| T23.632S | Corrosion of second degree of multiple left fingers (nail), not including thumb, sequela | BILLABLE CODE |
| T23.639 | Corrosion of second degree of unspecified multiple fingers (nail), not including thumb | NON-BILLABLE CODE |
| T23.639A | Corrosion of second degree of unspecified multiple fingers (nail), not including thumb, initial encounter | BILLABLE CODE |
| T23.639D | Corrosion of second degree of unspecified multiple fingers (nail), not including thumb, subsequent encounter | BILLABLE CODE |
| T23.639S | Corrosion of second degree of unspecified multiple fingers (nail), not including thumb, sequela | BILLABLE CODE |
