04LJ3ZZ
Occlusion External Iliac Artery, Left to No Qualifier with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 4 Lower Arteries |
| Operation | L Occlusion |
| Body Part | J External Iliac Artery, Left |
| Approach | 3 Percutaneous |
| Device | Z No 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
External Iliac Artery, Left
The left external iliac artery continues from the common iliac artery to become the femoral artery at the inguinal ligament, supplying the entire left leg, so true occlusion of this segment is reserved for situations where flow is being deliberately redirected rather than simply blocked. This typically occurs during endovascular aneurysm repair, where a stent-graft limb excludes a diseased or aneurysmal portion of the vessel while maintaining a patent lumen, or when embolization is used to close off a pseudoaneurysm or arteriovenous fistula affecting this segment. Given its frequent use as a vascular access conduit for catheter-based procedures elsewhere in the body, documentation should specify the exact indication and device used, as inadvertent versus intentional occlusion carries very different clinical and coding implications.
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.
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.