06FN3Z0
Fragmentation Femoral Vein, Left to Ultrasonic with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 6 Lower Veins |
| Operation | F Fragmentation |
| Body Part | N Femoral Vein, Left |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | 0 Ultrasonic |
Operation Definition
Breaking solid matter in a body part into pieces
Procedure Overview
Fragmentation of the lower veins involves breaking up solid material inside a vein, typically a blood clot, into smaller pieces without removing that material from the body. This is most often accomplished with a mechanical thrombectomy device that macerates or churns the clot so the resulting fragments can be cleared by the bloodstream, sometimes combined with aspiration of the debris, though the defining feature is the breaking apart of the obstruction rather than its extraction.
This approach is used in deep vein thrombosis or other venous occlusions when restoring flow quickly is important but a full open or catheter-based removal of the clot is not the chosen strategy. Mechanical fragmentation devices are frequently paired with clot-dissolving medication delivered through the same catheter, since breaking the clot into smaller pieces increases the surface area exposed to the drug and speeds resolution.
Because the material is disrupted in place rather than pulled out, this procedure typically leaves less to physically retrieve and is generally performed as a percutaneous, catheter-based intervention through the venous system.
Anatomy & Axis Detail
Femoral Vein, Left
The left femoral vein runs alongside the femoral artery in the thigh, draining the deep venous system before continuing as the external iliac vein, and it shares with its right-sided counterpart a high propensity for thrombus formation, particularly after immobilization, surgery, or trauma. Fragmentation is used to mechanically disrupt clot occupying this vessel, typically through a catheter-based device that shears or macerates the thrombus so it can be removed by suction or resolved through natural clearance mechanisms. Because the femoral vein often serves simultaneously as an access route for catheter-based venous procedures, care is taken to document whether the vessel was the treatment target, the access site, or both when this segment is involved.
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.
Qualifier: Ultrasonic
This qualifier indicates use of ultrasonic energy in a procedure, such as an atherectomy device that emulsifies plaque with high-frequency sound waves. It differs from the orbital atherectomy qualifier, which relies on mechanical abrasion instead of acoustic energy, and is chosen when the device technology itself is what distinguishes the procedure coded.
Coding & Documentation
Coders should look for language indicating a clot was macerated, pulverized, or mechanically broken apart within the vein, as opposed to language describing the clot being suctioned or pulled out of the body, which would point to Extirpation instead. The specific vein treated needs to be documented, along with the percutaneous approach typically used for these catheter-based interventions.
A frequent source of error is coding Fragmentation when the physician's note actually describes a device that both breaks up and aspirates the clot debris out through the catheter, since removing the fragmented material from the body shifts the root operation to Extirpation rather than Fragmentation. Coders should read the full device description and outcome statement carefully rather than relying on the device's brand name alone, since some devices can be used in either mode depending on how they are operated during the case.