ICD-10-PCS Billable Code

04C90ZZ

Extirpation Renal Artery, Right to No Qualifier with No Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System4 Lower Arteries
OperationC Extirpation
Body Part9 Renal Artery, Right
Approach0 Open
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Taking or cutting out solid matter from a body part

Procedure Overview

This family covers procedures that physically take or cut solid matter out of a lower extremity artery, most commonly a blood clot, embolic debris, or calcified plaque that is obstructing or threatening blood flow. Unlike opening a narrowed vessel with a balloon, Extirpation is about removing material that does not belong in the vessel at all, restoring the artery's normal channel by clearing it out.

This type of procedure is frequently performed urgently, such as when a clot has suddenly blocked circulation to a leg and threatens the viability of the limb, but it is also done electively to clear chronic thrombus or embolic material identified on imaging. Techniques include mechanical thrombectomy devices, suction catheters, and open surgical extraction through an arteriotomy.

Because the obstructing material is often the direct cause of a patient's acute symptoms, such as sudden leg pain, numbness, or pallor from lost blood supply, prompt extirpation can be time-sensitive and is closely tied to preserving limb function.

Anatomy & Axis Detail

Renal Artery, Right

The right renal artery, a direct branch of the abdominal aorta supplying the right kidney, is extirpated when thrombus, atherosclerotic debris, or embolic material threatens renal perfusion, a situation that can arise after cardiac catheterization, aortic dissection, or in the setting of renal artery stenosis with superimposed thrombosis. Because renal ischemia can rapidly progress to infarction and permanent nephron loss, timely removal of occluding material is often pursued through catheter-based aspiration or, less commonly, open surgical exploration. The artery's relatively short course from the aorta to the renal hilum leaves little margin for error during instrumentation, and physicians typically confirm restored flow with post-procedure imaging. Laterality must be documented clearly since the right and left renal arteries are distinct coded body parts.

Approach: Open

Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.

Coding & Documentation

Documentation supporting this code family should specifically describe solid matter, such as thrombus, embolus, or calcified material, being taken or cut out of a named lower artery, along with the approach and technique used to extract it. Coders should confirm whether the material removed originated within the artery being coded or migrated from elsewhere, since the body part value reflects the site of extraction, not necessarily the origin of the clot.

A common error is coding Extirpation when the procedure actually involved dilating a narrowed segment with only incidental clearing of debris, which may instead belong under Dilation if no discrete solid matter removal is separately documented. Another frequent issue is under-coding when both a mechanical thrombectomy and a separate angioplasty are performed in the same session, since each distinct root operation performed on a different objective typically warrants its own code.

Commonly Confused With

DrainageExtirpation is commonly confused with Drainage, but the deciding factor is the physical state of what is removed: solid matter such as clot points to Extirpation, while fluid or gas points to Drainage.
FragmentationIt is also distinguished from Fragmentation, which breaks solid matter into pieces without removing it from the body, and from Dilation, which widens the vessel itself rather than removing obstructing material.
DilationWhen thrombus removal is immediately followed by stent placement to keep the artery open, both an Extirpation code and a separate Dilation code are typically warranted, since they represent distinct objectives even within the same procedural session.