ICD-10-PCS Billable Code

06L33DZ

Occlusion Esophageal Vein to No Qualifier with Intraluminal Device, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System6 Lower Veins
OperationL Occlusion
Body Part3 Esophageal Vein
Approach3 Percutaneous
DeviceD Intraluminal Device
QualifierZ 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

Esophageal Vein

The esophageal veins form a submucosal plexus in the lower esophagus that becomes a primary site of variceal bleeding when portal pressure rises, since this network normally drains into the portal system but can enlarge dramatically as portal hypertension forces blood through this collateral pathway toward the systemic venous system. Occlusion of esophageal veins is generally achieved endoscopically or through transvenous embolization techniques aimed at controlling active hemorrhage or preventing rebleeding from esophageal varices, rather than through open surgical ligation. Because these veins are thin-walled, tortuous, and embedded in a mucosa prone to erosion, the procedure is typically undertaken emergently in the setting of gastrointestinal bleeding, and success is judged both by immediate hemostasis and by the durability of variceal obliteration on follow-up endoscopy.

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: Intraluminal Device

Intraluminal Device denotes a single device, such as a stent or occlusion device, positioned within the lumen of a tubular body part like a vessel, duct, or airway to maintain patency or occlude flow. It carries no drug coating or radioactivity, distinguishing it from the drug-eluting, radioactive, and bioactive intraluminal device values, and from Extraluminal Device, which sits outside rather than inside the lumen.

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.

Commonly Confused With

RestrictionOcclusion is frequently mixed up with Restriction, but Restriction only partially narrows a vessel's lumen rather than closing it completely, and the two root operations are not interchangeable even when the clinical intent looks similar.
ExcisionIt's also distinct from Excision or Extirpation, which remove diseased tissue or clot material rather than sealing the vessel, and from Repair, which is used when a vein wall defect is closed without the goal of stopping all flow through it.