0QHB38Z
Insertion Lower Femur, Right to No Qualifier with External Fixation Device, Limb Lengthening, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | Q Lower Bones |
| Operation | H Insertion |
| Body Part | B Lower Femur, Right |
| Approach | 3 Percutaneous |
| Device | 8 External Fixation Device, Limb Lengthening |
| Qualifier | Z No Qualifier |
Operation Definition
Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part
Procedure Overview
Insertion procedures place a nonbiological device into a lower bone to monitor, assist, or support it, without taking the place of any bone tissue. Common examples include implanting a bone growth stimulator, placing radiographic markers, or inserting fixation hardware such as pins or screws for stabilization when no fracture is being actively repaired at that session.
These devices support healing or diagnosis over time rather than immediately fixing a structural problem, so patients often keep them in place for weeks or months, with follow-up imaging or visits to track progress.
Anatomy & Axis Detail
Lower Femur, Right
The lower right femur refers to the distal end of the thighbone, including the metaphyseal region above the knee joint, an area where bone density transitions and where growth plates are located in skeletally immature patients. Insertion here often involves guided growth devices, such as tension-band plates or screws, used to gradually correct angular limb deformities by influencing physeal growth without directly resecting or repositioning bone, which is why this is coded as insertion rather than a corrective root operation. The distal femur's proximity to the knee also makes it a site for stimulators aiding fracture healing after supracondylar injuries. Accurate coding requires confirming the device modifies or supports the bone environment rather than the surrounding cartilage or joint capsule.
Approach: Percutaneous
Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.
Device: External Fixation Device, Limb Lengthening
This value describes an external fixation frame specifically built to enable gradual limb lengthening through controlled distraction osteogenesis, in which the bone is slowly separated and allowed to regenerate new bone in the gap. It differs from other external fixation subtypes such as monoplanar, ring, or hybrid frames, which are generally used for fracture stabilization rather than intentional lengthening.
Coding & Documentation
This code family applies when a device is put into the bone and nothing about the bone itself is being cut, repaired, or realigned in that same procedure. Documentation should name the specific device and confirm it isn't replacing a body part. A frequent misstep is coding insertion when hardware is placed during an active fracture reduction or fusion - in those cases the device placement is typically captured within the reduction or fusion code rather than as a separate insertion, and coding both can result in overcoding. Insertion is coded separately when the device placement is the entire purpose of the encounter, such as a later-stage stimulator implant.
Commonly Confused With
Insertion is most often confused with Replacement, which physically substitutes for bone tissue (such as a joint prosthesis) rather than simply adding a device alongside it, and with the device-placement component bundled into Reposition or Fusion procedures, where hardware is incidental to the primary root operation rather than the reason for the encounter.