06L23CZ
Occlusion Gastric Vein to No Qualifier with Extraluminal Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 6 Lower Veins |
| Operation | L Occlusion |
| Body Part | 2 Gastric Vein |
| Approach | 3 Percutaneous |
| Device | C Extraluminal Device |
| Qualifier | Z No Qualifier |
Operation Definition
Completely closing an orifice or the lumen of a tubular body part
Procedure Overview
Occlusion procedures in the lower veins permanently close off a vessel so blood can no longer flow through it. This is most often used to treat varicose veins, where a diseased or refluxing segment of the great or small saphenous vein is sealed shut, redirecting blood into healthier veins nearby. It's also used to block off perforator veins that are feeding chronic leg ulcers or to close a vessel that's actively bleeding.
Techniques vary widely: some use heat from a laser or radiofrequency catheter to scar the vein wall shut from the inside, others inject a sclerosing chemical or medical adhesive, and some use mechanically placed clips, ligatures, or coils, including vena cava filters that occlude flow to prevent clots from traveling to the lungs.
Patients typically pursue this for cosmetic or symptomatic varicose vein relief, or as a more urgent measure to manage clotting risk or uncontrolled bleeding.
Anatomy & Axis Detail
Gastric Vein
Gastric veins drain the stomach wall and communicate directly with the esophageal venous plexus, making them a key pathway through which portal hypertension produces gastroesophageal varices. Occlusion of a gastric vein is performed to interrupt this route of collateral flow, most commonly during balloon-occluded retrograde transvenous obliteration or similar variceal management procedures aimed at controlling or preventing bleeding from gastric varices. Because these veins are small and variably arranged, with communication to splenic and renal venous drainage in some patients, occlusion often requires careful catheter positioning under fluoroscopic guidance to ensure the correct varix-feeding vessel is closed. Successful occlusion here can meaningfully reduce rebleeding risk in patients with cirrhosis-related portal hypertension who are poor candidates for more extensive shunt procedures.
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: Extraluminal Device
Extraluminal Device describes a device positioned on the outside surface of a tubular or hollow body part rather than within its lumen, such as a vascular banding or external stabilization device. It is the structural counterpart to Intraluminal Device, distinguished by its external placement relative to the vessel or duct wall rather than sitting inside the passageway itself.
Coding & Documentation
The documentation needs to clearly establish that the vein's lumen was fully closed, not just narrowed or repaired, and coders must select the correct approach value based on whether the closure was done via an open incision, a percutaneous needle stick, or an endoscopic catheter, since energy-based ablation and chemical sclerotherapy are both captured as Occlusion despite using very different tools.
A frequent assignment error is confusing a vena cava filter placement, which is an Occlusion combined with a device value, with a simple ligation that requires no device code at all. Coders also sometimes miss that laser and radiofrequency ablation both map to Occlusion with a qualifier reflecting the specific method, rather than to Destruction, which is not used for this body system's ablation procedures.