04LD4CZ
Occlusion Common Iliac Artery, Left to No Qualifier with Extraluminal Device, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 4 Lower Arteries |
| Operation | L Occlusion |
| Body Part | D Common Iliac Artery, Left |
| Approach | 4 Percutaneous Endoscopic |
| 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 on the lower arteries deliberately seal off a vessel's opening or lumen so blood can no longer pass through it. This is done using techniques like embolization coils, particles, or glue delivered through a catheter, or by surgically tying off the artery, and it serves purposes ranging from stopping dangerous bleeding to cutting blood supply to a tumor or an abnormal vascular connection. Unlike most procedures aimed at restoring flow, this family intentionally blocks it.
Common reasons for occlusion include controlling a bleeding vessel after trauma or during surgery, shrinking uterine fibroids by blocking their blood supply, treating an aneurysm by closing off the feeding artery, or managing internal bleeding from the gastrointestinal or pelvic arteries. The approach can be catheter-based and minimally invasive or performed as part of an open surgical procedure.
Anatomy & Axis Detail
Common Iliac Artery, Left
The left common iliac artery arises from the aortic bifurcation at approximately L4 and travels a short distance before splitting into internal and external branches, so occlusion here interrupts flow to the entire left pelvis and lower limb rather than a single downstream territory. Endovascular occlusion is most often chosen to exclude an aneurysm, control a type II endoleak after aortic stent-graft repair, or redirect flow during hybrid procedures such as iliac branch device planning, typically using coils, plugs, or a covered stent placed via percutaneous femoral or brachial access. Because this vessel sits so close to the aortic bifurcation and the contralateral iliac origin, coder documentation should confirm the device deployed and whether the approach was percutaneous or open, since proximity to the aorta can complicate device selection and precise landing zone description.
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: 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
Coders should look for clear language that the artery was closed off entirely - terms like embolization, coiling, ligation, or clipping - and confirm from the note that the intent and result was complete closure rather than partial narrowing. The specific artery occluded needs to match the correct body part value, which for pelvic and reproductive procedures like uterine fibroid embolization can involve multiple small branches. A frequent mistake is confusing partial narrowing intended to reduce but not eliminate flow with true occlusion, or missing that embolization material used therapeutically differs from diagnostic catheter placement, which would not be separately coded.