0QSC4CZ
Reposition Lower Femur, Left to No Qualifier with External Fixation Device, Ring, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | Q Lower Bones |
| Operation | S Reposition |
| Body Part | C Lower Femur, Left |
| Approach | 4 Percutaneous Endoscopic |
| Device | C External Fixation Device, Ring |
| Qualifier | Z No Qualifier |
Operation Definition
Moving to its normal location, or other suitable location, all or a portion of a body part
Procedure Overview
Reposition procedures move a lower bone, or a fragment of one, from an abnormal location to its correct anatomical position, or to another location that will let it function properly. This is the category most fracture reductions fall into, along with corrective osteotomies performed to realign a bone that has healed crookedly or grown abnormally, and procedures that move a bone segment to a new site for reconstructive purposes.
These operations address displaced fractures of the pelvis, femur, tibia, fibula, patella, or foot bones, as well as deformities such as a bowed tibia or a malaligned metatarsal that needs to be cut and shifted into better alignment. Fixation devices like plates, screws, rods, or external fixators are frequently used alongside the repositioning to hold the bone in its new location while it heals.
Anatomy & Axis Detail
Lower Femur, Left
The left lower femur includes the distal condyles and metaphyseal region of the thighbone that form the femoral surface of the knee joint. Reposition is performed when supracondylar or intra-articular distal femur fractures have displaced the condyles relative to the shaft or to each other, and the goal is to restore normal alignment and articular congruity with the tibia before any stabilizing hardware is placed. The nearby popliteal neurovascular bundle makes this an anatomically sensitive area requiring controlled reduction technique. As on the right, documentation should identify the lower femur specifically as the segment repositioned, distinguishing it from the femoral shaft or upper femur codes.
Approach: Percutaneous Endoscopic
Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.
Device: External Fixation Device, Ring
A ring external fixation device, exemplified by the Ilizarov frame, uses circular rings connected by rods and transfixing wires to provide multiplanar stabilization and allow gradual deformity correction or lengthening. It differs from a monoplanar frame, which fixes pins along a single plane, and is often more versatile for complex reconstructions.
Coding & Documentation
The operative note needs to document that a bone or bone fragment was moved to a different position, whether by closed manipulation or open surgical exposure, and should specify any fixation device left in place, since that device is captured as a separate value on the same code rather than a separate procedure. Coders must distinguish open versus percutaneous versus external approaches carefully, as this changes the approach value substantially. A common mistake is coding a simple cast application or splinting as Reposition when no manipulation of bone position actually occurred, and another is failing to capture the device value when hardware is placed during the same reduction.