Knee CPT codes

Radical resection of a tumor involving the femur or knee, including bone and surrounding soft tissue as required for oncologic margins.

Femoral osteotomy performed with insertion and management of an externally controlled intramedullary lengthening device for limb-length discrepancy correction.

Revision total knee arthroplasty with replacement of both the femoral and tibial components, with or without the use of allograft tissue.

Arthroscopic knee surgery for transplantation of a donor meniscus, medial or lateral, including the required arthrotomy for graft insertion.

Surgical implantation of the patient's own cultured chondrocytes into a cartilage defect of the knee joint.

Radical resection of a soft tissue tumor in the thigh or knee area measuring 5 cm or greater, including excision of the tumor with wide margins of surrounding tissue.

Surgical lengthening of the femur (thigh bone) via osteoplasty, typically using osteodistraction to gradually separate bone segments and stimulate new bone formation across the gap.

Surgical shortening of the femur by removing a bone segment and stabilizing the remaining ends — performed to correct leg length discrepancy or malunion.

Revision of a total knee arthroplasty involving a single component, performed with or without the use of donor bone graft material.

Surgical arthrodesis of the knee joint, fusing the femur and tibia using any technique to eliminate motion at the joint.

Open surgical transplantation of donor cartilage and bone to repair a full-thickness osteochondral defect of the knee joint.

Open treatment of a femoral shaft fracture using an intramedullary implant, with or without external fixation, cerclage, or locking screws.

Knee replacement surgery addressing both the medial and lateral tibiofemoral compartments, with or without resurfacing of the patella.

Open surgical repair of a femoral supracondylar or transcondylar fracture that extends into the intercondylar region, with internal fixation as needed.

Multiple osteotomies of the femoral shaft with realignment on an intramedullary rod — the Sofield-type procedure for severe femoral deformity correction.

Open surgical treatment of knee dislocation, including internal fixation when indicated, with primary repair of ligaments and augmentation or reconstruction as needed.

Arthroscopic surgical transplantation of donor (allograft) osteochondral tissue into a damaged articular cartilage surface of the knee joint.

Removal of a knee prosthesis — including total knee components and methylmethacrylate cement — with or without insertion of a spacer at the same operative session.

Open reconstruction of both the intra-articular and extra-articular ligaments of the knee, with or without graft augmentation.

Arthroscopic repair or augmentation of the posterior cruciate ligament (PCL) of the knee, performed under endoscopic visualization.

Open surgical treatment of a bicondylar proximal tibial plateau fracture, with or without internal fixation.

Arthroplasty of the knee involving resurfacing of the condyle and tibial plateau in a single tibiofemoral compartment — medial OR lateral, not both.

Prophylactic fixation of the femur using nailing, pinning, plating, or wiring, with or without methylmethacrylate, to reinforce bone at risk of pathologic fracture before failure occurs.

Open treatment of knee dislocation with internal fixation and primary ligamentous repair, without augmentation or reconstruction.

Radical resection of a suspected malignant soft tissue tumor in the thigh or knee area, with the tumor and resection margins measuring less than 5 cm in greatest dimension.

Open intra-articular ligamentous reconstruction or augmentation of the knee joint

Open treatment of a femoral supracondylar or transcondylar fracture without intercondylar extension, including internal fixation when performed.

Arthroscopic knee procedure in which osteochondral autograft plugs — harvested from the patient's own joint — are implanted to resurface a focal cartilage defect (e.g., mosaicplasty). Graft harvesting is included in the code.

Open surgical repair of a distal femur fracture involving the medial or lateral condyle, with internal fixation when performed.

Femoral osteotomy at the shaft or supracondylar region, performed with internal or external fixation to correct angular deformity or malalignment.

Arthroscopic-assisted anterior cruciate ligament repair or augmentation of the knee, performed endoscopically.

Arthroscopically assisted treatment of a bicondylar tibial plateau fracture (both medial and lateral condyles), with or without internal fixation.

Open osteochondral autograft transplantation of the knee, including harvesting of the autograft(s) — commonly performed as mosaicplasty (OATS).

Proximal tibial osteotomy with fibular excision or osteotomy to correct varus (bowleg) or valgus (knock-knee) deformity at the knee joint.

Open primary repair of torn collateral ligament(s), cruciate ligament(s), and/or joint capsule of the knee — all structures addressed in a single operative session.

Open surgical treatment of a unicondylar tibial plateau fracture, with internal fixation performed when needed.

Proximal tibial osteotomy with fibular excision or osteotomy for correction of genu varus or genu valgus, performed before epiphyseal closure.

Arthroscopically assisted treatment of a fracture involving the intercondylar spine and/or tuberosity of the proximal tibia, performed with or without manipulation and with internal or external fixation.

Open treatment of a distal femoral epiphyseal (growth plate) separation, including internal fixation when performed.

Combined epiphyseal arrest of the distal femur, proximal tibia, and fibula to permanently halt growth plate activity across all three bones in a single operative session.

Open surgical reduction of a dislocated knee joint with internal fixation when needed, performed without primary ligament repair or ligamentous reconstruction.

Open surgical treatment of patellar dislocation, with or without partial or complete removal of the patella.

Transfer or transplant of multiple tendons in the thigh, involving muscle redirection or rerouting — for example, moving an extensor tendon to function on the flexor side.

Arthroplasty of the femoral condyles or tibial plateau(s) of the knee, without debridement or partial synovectomy.

Surgical lengthening of multiple hamstring tendons in both legs simultaneously, performed through open incisions along the posterior thighs.

Patellar arthroplasty with insertion of a prosthetic implant to resurface the kneecap.

Arthroscopic knee surgery to repair both the medial and lateral meniscus during a single operative session.

Osteotomy of the femoral shaft or supracondylar region performed without internal or external fixation devices.

Surgical reshaping or realignment of the anterior tibial tubercle to correct patellofemoral malalignment and relieve kneecap degeneration (Maquet-type or similar osteotomy procedure).

Tibial plateau arthroplasty of the knee with debridement and partial synovectomy performed at the same operative setting.

Partial excision of bone from the femur, proximal tibia, and/or fibula — performed for osteomyelitis, bone abscess, or similar infectious or destructive conditions — using craterization, saucerization, or diaphysectomy technique.

Arthroplasty of the femoral condyles or tibial plateau(s) of the knee, performed with debridement and partial synovectomy.

Closed treatment of a femoral shaft fracture with manipulation, with or without traction applied to achieve bone alignment

Open reduction and internal fixation of intercondylar or transcondylar knee fractures, including tibial tubercle fractures requiring surgical stabilization.

Re-amputation of the thigh through the femur at any level, performed after a prior amputation has failed or the stump requires surgical revision beyond secondary closure.

Closed reduction of a supracondylar or transcondylar femoral fracture with manipulation, with or without intercondylar extension, with or without skin or skeletal traction.

Surgical disarticulation at the knee joint, separating the tibia and fibula from the femur without cutting through bone.

Excision or curettage of a bone cyst or benign tumor of the femur, with autograft harvest and implantation performed during the same operative session.

Surgical removal of a tumor 5 cm or larger from the intramuscular tissue of the thigh or knee region.

Secondary reconstruction of a ruptured quadriceps or hamstring muscle using a fascial or tendon graft harvested from the patient's own tissue.