S80.842 External constriction, left lower legNon-billable ICD-10-CM code.
M23 Internal derangement of knee ("current injury - see injury of knee and lower leg (S80-S89)")S80.84 External constriction of lower legS80.841 External constriction, right lower legS80.841A External constriction, right lower leg, initial encounterS80.841D External constriction, right lower leg, subsequent encounterS80.841S External constriction, right lower leg, sequelaS80.842 External constriction, left lower leg (this code)S80.842A External constriction, left lower leg, initial encounterS80.842D External constriction, left lower leg, subsequent encounterS80.842S External constriction, left lower leg, sequelaS80.849 External constriction, unspecified lower legS80.849A External constriction, unspecified lower leg, initial encounter