04VC3EZ
Restriction Common Iliac Artery, Right to No Qualifier with Intraluminal Device, Branched or Fenestrated, One or Two Arteries, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 4 Lower Arteries |
| Operation | V Restriction |
| Body Part | C Common Iliac Artery, Right |
| Approach | 3 Percutaneous |
| Device | E Intraluminal Device, Branched or Fenestrated, One or Two Arteries |
| Qualifier | Z No Qualifier |
Operation Definition
Partially closing an orifice or the lumen of a tubular body part
Procedure Overview
Restriction procedures in the lower arteries narrow the lumen of a vessel or partially close off an opening without removing the vessel itself. The most common example is endovascular aneurysm repair, where a stent graft is placed inside the aorta, iliac, or femoral artery to redirect blood flow through a narrower channel and reduce pressure on a weakened, bulging arterial wall. The same approach is used to manage a pseudoaneurysm, an arteriovenous fistula, or a vessel injury where blood is escaping into surrounding tissue.
The goal is to preserve blood flow to downstream tissue while preventing rupture, further leakage, or abnormal shunting. Because the device or technique only reduces the diameter of the passage rather than blocking it entirely, patients generally keep circulation to the limb or organ the artery supplies, unlike procedures that fully seal off a vessel.
Anatomy & Axis Detail
Common Iliac Artery, Right
The common iliac artery is a paired terminal branch of the abdominal aorta that supplies the entire lower extremity and pelvis on its side before dividing into internal and external branches, making the right common iliac a major conduit whose partial narrowing carries broad downstream consequences. Restriction here, typically performed by placing a stent across a stenotic or aneurysmal segment, is used to correct luminal narrowing from atherosclerotic disease or to manage an iliac aneurysm while preserving flow to both the pelvic organs and the leg. Given its size and central position, procedure notes should specify the stent's exact landing zones relative to the aortic bifurcation and the iliac bifurcation, since overlap into either affects how the intervention is coded.
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, Branched or Fenestrated, One or Two Arteries
This value identifies an intraluminal endovascular device, such as a branched or fenestrated aortic endograft, designed with openings or side branches to accommodate blood flow into one or two additional arteries, commonly visceral or renal branches. It is distinguished from the Three or More Arteries variant strictly by the number of branch vessels incorporated into the device design.
Coding & Documentation
A coder selects Restriction when documentation describes an intraluminal device, such as a stent graft, tacking that narrows a vessel or contains a diseased segment, and the approach and device values must reflect the specific artery treated and the device type. Operative notes should clearly state that the device reduces the vessel's diameter or seals an aneurysm sac rather than obliterating the artery. A frequent misassignment is coding Occlusion when the physician's language describes a stent graft excluding an aneurysm; Occlusion applies only when the lumen is completely closed, which most aortic and iliac stent graft placements do not accomplish at the treated segment. Coders also miss that multiple arterial segments covered by a single continuous device may require separate body part values depending on anatomic coverage.