04BE3ZX
Excision Internal Iliac Artery, Right to Diagnostic with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 4 Lower Arteries |
| Operation | B Excision |
| Body Part | E Internal Iliac Artery, Right |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | X Diagnostic |
Operation Definition
Cutting out or off, without replacement, a portion of a body part
Procedure Overview
This family describes surgical procedures that cut out a portion of a lower extremity artery without replacing what is removed, typically to obtain a tissue sample for diagnosis or to remove a segment of diseased vessel wall. Unlike procedures aimed at reopening or bypassing a blocked artery, Excision here is about physically taking a piece of the vessel itself, whether for biopsy purposes or as a limited resection.
Common reasons for this procedure include biopsying a suspicious arterial wall lesion, removing a small aneurysmal segment that does not require full graft replacement, or excising a portion of vessel affected by infection or tumor invasion. The remainder of the artery is generally left in place and, depending on the clinical situation, may be repaired or simply closed.
Because only a portion of the body part is taken and no replacement graft is inherently part of this root operation, Excision in the lower arteries is usually a more limited intervention than a full arterial resection and reconstruction, reserved for situations where sampling or partial removal addresses the clinical problem.
Anatomy & Axis Detail
Internal Iliac Artery, Right
The right internal iliac artery, also called the hypogastric artery, supplies the pelvic viscera, gluteal region, and perineum through numerous branches, making it a vessel where excision carries implications beyond the limb. A segment may be excised for an internal iliac aneurysm, often found alongside common or external iliac aneurysms as part of aortoiliac aneurysmal disease, or when the vessel must be sacrificed to gain surgical access during complex pelvic or oncologic operations. Because of its extensive collateral network to the pelvic organs, unilateral excision is often tolerated without major ischemic consequence, but bilateral involvement raises greater concern for pelvic organ or gluteal ischemia. Operative notes should specify whether excision was isolated or occurred in conjunction with common or external iliac artery procedures, since these vessels are frequently addressed together.
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.
Qualifier: Diagnostic
Applied chiefly to Excision, this qualifier marks that tissue was removed specifically for diagnostic purposes, i.e., a biopsy intended for pathologic evaluation rather than to treat disease. It distinguishes biopsy-type excisions from therapeutic excisions of the same body part, which are coded without this qualifier even though the physical technique may be identical.
Coding & Documentation
Coding this family correctly depends on documentation confirming that a portion, not the entirety, of the specific named lower artery was cut out and removed from the body, along with the approach used to reach it. If the pathology or operative report indicates the entire named vessel segment was removed, Resection rather than Excision is the appropriate root operation, so coders must read closely for that distinction.
A frequent error is defaulting to Excision for any biopsy-related procedure without checking whether the tissue was actually excised versus merely sampled with a needle, which may instead be coded differently depending on technique. Another common mistake is failing to code a concurrent repair, such as suture closure of the arteriotomy, separately when it represents more than the value included in the excision itself, or conversely coding a repair that is inherent to the excision procedure.