ICD-10-PCS Billable Code

04SC4ZZ

Reposition Common Iliac Artery, Right to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System4 Lower Arteries
OperationS Reposition
Body PartC Common Iliac Artery, Right
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Moving to its normal location, or other suitable location, all or a portion of a body part

Procedure Overview

Reposition procedures move an artery, or a segment of one, to a different location or restore it to its proper anatomic position without removing tissue or adding replacement material. In the lower extremities and pelvis this is an uncommon but important root operation, most often encountered when an artery has been displaced by trauma, congenital anomaly, or a prior surgical dissection and needs to be moved to a location where it functions correctly or does not interfere with another planned procedure.

Examples include transposing a renal or iliac artery during complex aortic reconstruction, or relocating a vessel during organ transplantation to create adequate inflow to a transplanted kidney. The vessel itself is not resected or replaced; it is detached at one end and reattached in a new position or orientation.

Anatomy & Axis Detail

Common Iliac Artery, Right

The right common iliac artery divides the aortic bifurcation flow toward the pelvis and lower limb, and its origin can require repositioning during endovascular or open aortoiliac reconstruction when a stent graft or aneurysm repair would otherwise compromise its takeoff. Reposition in this context refers to relocating the artery's origin or course to a new site on the aorta or graft to maintain unobstructed flow into the pelvis and leg. This is distinguished from bypass because the native artery itself is moved rather than routed around with a separate conduit. Given the vessel's caliber and the surrounding proximity of the ureter and iliac vein, careful notation of the new anatomic position helps confirm the procedure achieved adequate perfusion without kinking or tension on the relocated segment.

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.

Coding & Documentation

Coders need operative documentation that clearly states the artery was moved to a new location, not simply exposed, clamped, or repaired in place, since Reposition requires an actual change in anatomic position. The note should specify the originating and destination location of the vessel, which affects the body part value selected.

A frequent mistake is coding a transposition performed as part of a larger transplant or bypass procedure as a separate Reposition when it is actually an integral, non-separately-reportable step of the main procedure. Coders also sometimes confuse temporary retraction or mobilization of a vessel during exposure, which is not coded at all, with true Reposition, which requires a permanent relocation.

Commonly Confused With

TransferTransfer, used elsewhere in ICD-10-PCS for moving tissue while keeping its vascular supply intact, is conceptually similar but does not apply to arteries functioning as the primary body part being moved for their own sake.
BypassBypass can resemble Reposition when a vessel's flow path is altered, but Bypass creates a new conduit or route rather than physically relocating the native artery, which is the defining feature of Reposition.