| T23.551 | Corrosion of first degree of right palm | NON-BILLABLE CODE |
| T23.551A | Corrosion of first degree of right palm, initial encounter | BILLABLE CODE |
| T23.551D | Corrosion of first degree of right palm, subsequent encounter | BILLABLE CODE |
| T23.551S | Corrosion of first degree of right palm, sequela | BILLABLE CODE |
| T23.552 | Corrosion of first degree of left palm | NON-BILLABLE CODE |
| T23.552A | Corrosion of first degree of left palm, initial encounter | BILLABLE CODE |
| T23.552D | Corrosion of first degree of left palm, subsequent encounter | BILLABLE CODE |
| T23.552S | Corrosion of first degree of left palm, sequela | BILLABLE CODE |
| T23.559 | Corrosion of first degree of unspecified palm | NON-BILLABLE CODE |
| T23.559A | Corrosion of first degree of unspecified palm, initial encounter | BILLABLE CODE |
| T23.559D | Corrosion of first degree of unspecified palm, subsequent encounter | BILLABLE CODE |
| T23.559S | Corrosion of first degree of unspecified palm, sequela | BILLABLE CODE |
