047C47Z
Dilation Common Iliac Artery, Right to No Qualifier with Intraluminal Device, Drug-eluting, Four or More, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 4 Lower Arteries |
| Operation | 7 Dilation |
| Body Part | C Common Iliac Artery, Right |
| Approach | 4 Percutaneous Endoscopic |
| Device | 7 Intraluminal Device, Drug-eluting, Four or More |
| Qualifier | Z No Qualifier |
Operation Definition
Expanding an orifice or the lumen of a tubular body part
Procedure Overview
This family describes procedures that widen a narrowed or blocked segment of an artery in the leg, pelvis, or abdomen so blood can flow more freely to the tissues those vessels supply. Narrowing in these arteries is commonly caused by atherosclerotic plaque buildup, and when it becomes severe enough, patients may experience leg pain with walking, poor wound healing, or in serious cases, tissue at risk of loss.
The procedure is typically performed using a catheter threaded through the vascular system to the narrowed spot, where a balloon is inflated to press the plaque outward and reopen the lumen. A stent is often left behind to help hold the artery open, though the dilation itself refers to the widening action rather than the device placement. Open surgical techniques that stretch a vessel are also included in this family.
These procedures are generally performed to relieve symptoms of peripheral artery disease, restore circulation to a limb, or address a stenosis found on vascular imaging, and are chosen based on how severe the narrowing is and how much of the artery is affected.
Anatomy & Axis Detail
Common Iliac Artery, Right
The right common iliac artery is the proximal continuation of the aorta's bifurcation, supplying the right lower extremity and pelvis before dividing into internal and external branches; it is a frequent site of atherosclerotic narrowing causing claudication or limb ischemia. Dilation restores the vessel's lumen through balloon angioplasty, often followed by stent placement given the artery's larger caliber and the mechanical stresses at the aortic bifurcation, which predispose to recoil and restenosis. Because this segment lies near the aortoiliac junction, treatment planning must account for potential involvement of the contralateral iliac origin and the distal aorta. Documentation should indicate whether the approach was percutaneous or open and whether a stent or other device was deployed, as this affects the complete procedure code.
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: Intraluminal Device, Drug-eluting, Four or More
Four or More Drug-eluting Intraluminal Devices captures procedures in which four or more such devices, commonly coronary stents, are implanted in the same body part in one session. It represents the upper end of the drug-eluting device-count scale, distinguished from the Two and Three counts only by quantity, and from the non-drug-eluting four-or-more value by the presence of a pharmacologic coating.
Coding & Documentation
Coders need documentation identifying the specific lower artery segment dilated, the approach used (open, percutaneous, or percutaneous endoscopic), and whether a device such as a stent or an intraluminal device was left in place, since that determines the device value appended to the code. The number of separate lesions treated in different named vessels can also affect how many codes are reported.
A common error is failing to code a separate Dilation for each distinct body part when multiple sites along the same limb are treated, since ICD-10-PCS defines body part values by specific artery segment. Another frequent mistake is omitting or misselecting the device value when a drug-eluting stent, a bare stent, or no device at all was used, since the operative note's wording on device type must be matched precisely to the code table options.