061T4AY
Bypass Foot Vein, Right to Lower Vein with Autologous Arterial Tissue, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 6 Lower Veins |
| Operation | 1 Bypass |
| Body Part | T Foot Vein, Right |
| Approach | 4 Percutaneous Endoscopic |
| Device | A Autologous Arterial Tissue |
| Qualifier | Y Lower Vein |
Operation Definition
Altering the route of passage of the contents of a tubular body part
Procedure Overview
Bypass procedures on the lower veins create a new pathway for blood to flow around a blocked or damaged section of a vein in the leg, pelvis, or abdomen. Surgeons typically use a segment of the patient's own vein, a synthetic graft, or a section of another vessel to route blood past the obstruction, restoring normal circulation and relieving symptoms like swelling, pain, or skin changes caused by poor venous return.
This is most often performed for severe venous insufficiency, chronic deep vein thrombosis that has scarred a vein shut, or May-Thurne syndrome where the iliac vein is compressed. A well-known example is the Palma procedure, which reroutes blood from a blocked iliac vein across the pelvis into the healthy vein on the opposite side using a segment of the patient's own saphenous vein.
Anatomy & Axis Detail
Foot Vein, Right
Foot veins on the right side form the distal superficial venous network draining the dorsum and plantar surfaces before joining the saphenous system, and bypass procedures at this level are rare, generally reserved for severe distal venous insufficiency, traumatic injury, or reconstruction in the setting of complex limb salvage. Because these vessels are small in caliber and superficial, any bypass is technically demanding and typically performed only when more proximal venous pathways are compromised and distal outflow must be reestablished to support tissue viability, often in coordination with arterial revascularization for a threatened limb. Documentation should identify the specific foot vein segment involved and the conduit and target vessel used, since the small vessel size makes precise anatomic description important for accurate coding.
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: Autologous Arterial Tissue
Autologous Arterial Tissue refers to an artery segment taken from the patient's own body, such as the internal mammary or radial artery, and repositioned as a graft within the same patient, typically for coronary revascularization. Its arterial wall structure gives it different handling and durability characteristics than the venous counterpart, and it is chosen over synthetic or donor tissue to minimize immune rejection.
Qualifier: Lower Vein
This qualifier marks a vein of the lower extremity, pelvis, or abdomen as the procedural target when no more specific named vessel is documented. It functions as the counterpart to Upper Vein, and the choice between the two depends solely on which general body region the treated vein belongs to.
Coding & Documentation
Coders need operative documentation naming both the vein being bypassed and where the new pathway terminates, since ICD-10-PCS bypass codes require identifying the qualifier vessel or body part that receives the rerouted flow. The type of conduit used, whether autologous vein, synthetic graft, or another patient tissue, is also captured in the device or qualifier character and must be pulled directly from the operative report.
A common mistake is defaulting to a same-vessel body part when the graft actually connects to a different named vein, which changes the qualifier value and can misrepresent the extent of the procedure. Coders also sometimes overlook that harvesting the graft vessel itself may warrant a separate Excision code if it's a distinct procedure rather than an inherent part of bypass graft preparation.