| S80.841 | External constriction, right lower leg | NON-BILLABLE CODE |
| S80.841A | External constriction, right lower leg, initial encounter | BILLABLE CODE |
| S80.841D | External constriction, right lower leg, subsequent encounter | BILLABLE CODE |
| S80.841S | External constriction, right lower leg, sequela | BILLABLE CODE |
| S80.842 | External constriction, left lower leg | NON-BILLABLE CODE |
| S80.842A | External constriction, left lower leg, initial encounter | BILLABLE CODE |
| S80.842D | External constriction, left lower leg, subsequent encounter | BILLABLE CODE |
| S80.842S | External constriction, left lower leg, sequela | BILLABLE CODE |
| S80.849 | External constriction, unspecified lower leg | NON-BILLABLE CODE |
| S80.849A | External constriction, unspecified lower leg, initial encounter | BILLABLE CODE |
| S80.849D | External constriction, unspecified lower leg, subsequent encounter | BILLABLE CODE |
| S80.849S | External constriction, unspecified lower leg, sequela | BILLABLE CODE |
