047D4EZ
Dilation Common Iliac Artery, Left to No Qualifier with Intraluminal Device, Two, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 4 Lower Arteries |
| Operation | 7 Dilation |
| Body Part | D Common Iliac Artery, Left |
| Approach | 4 Percutaneous Endoscopic |
| Device | E Intraluminal Device, Two |
| 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, Left
The left common iliac artery continues from the aortic bifurcation to supply the left pelvis and lower extremity, and like its right-sided counterpart is commonly affected by atherosclerotic disease causing claudication, rest pain, or, in severe cases, limb-threatening ischemia. Dilation is performed to reestablish adequate lumen diameter, typically through balloon angioplasty with frequent adjunctive stenting given the vessel's exposure to high flow and mechanical stress near the aortic bifurcation. The left common iliac artery's anatomic relationship to the overlying left common iliac vein, where compression can contribute to venous pathology, is sometimes relevant when planning access or interpreting imaging. As with the right side, coding accuracy depends on documenting the approach used and whether an intraluminal device was left in place.
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, Two
Intraluminal Device, Two indicates that exactly two non-drug-eluting intraluminal devices, such as bare-metal stents or occlusion devices, were placed in the same body part during one procedure. It parallels the drug-eluting count values but applies to devices without a pharmacologic coating, and is distinguished from the single Intraluminal Device value by the number of devices deployed.
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.