ICD-10-PCS Billable Code

05BA0ZX

Excision Brachial Vein, Left to Diagnostic with No Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System5 Upper Veins
OperationB Excision
Body PartA Brachial Vein, Left
Approach0 Open
DeviceZ No Device
QualifierX Diagnostic

Operation Definition

Cutting out or off, without replacement, a portion of a body part

Procedure Overview

Excision procedures in the upper veins involve cutting out a portion of a diseased or damaged vein without replacing it, most commonly to remove a segment affected by phlebitis, a varicosity, a tumor, or a section of vessel that has been injured. Because these are superficial or accessible veins in the arm, chest, or neck, excision is frequently done to relieve pain, improve appearance, or eliminate a source of clotting or infection rather than to restore blood flow, since the upper extremity has extensive collateral venous drainage.

A surgeon typically makes a small incision over the affected vein, isolates the segment, and removes it while leaving the surrounding tissue intact. Excised tissue may also be sent for biopsy when the reason for removal is to evaluate a suspicious growth or mass involving the vein wall.

Anatomy & Axis Detail

Brachial Vein, Left

The left brachial vein accompanies the brachial artery through the medial upper arm, usually existing as a paired venae comitantes before joining to form the axillary vein. Excision of a segment of this vein is undertaken when a localized problem, such as an organized thrombus unresponsive to other treatment, a venous aneurysm, or fibrous scarring from prior instrumentation, isolates disease to a specific length of the vessel. Given its intimate association with the brachial artery and the median nerve, the dissection must proceed with attention to preserving arterial flow and nerve function in the arm. Because this is a deep vein essential to venous return from the forearm and hand, surgeons weigh the impact of removing a segment against the collateral drainage available through the paired vein and adjacent channels. The procedure targets only the diseased length identified preoperatively.

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.

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

Coders need documentation confirming that only a portion of the vein was removed, since removal of an entire named vein still falls under excision as long as it is not paired with a graft or synthetic replacement. The operative report should specify the exact vein segment taken and whether the tissue was sent to pathology, which supports the diagnostic qualifier when applicable.

A common mistake is defaulting to excision when the physician actually performed a resection that included reconstruction or bypass, which would instead be coded as a different root operation. Coders should also watch for procedures described as "stripping" a vein, which despite the informal terminology is typically coded to extraction rather than excision because force is used to pull the vessel out along its length.

Commonly Confused With

ExtractionExtraction is the closest source of confusion, since both remove venous tissue, but extraction specifically involves pulling or stripping the vein out using force along its course, while excision uses sharp dissection to cut out a defined segment.
ResectionResection, used when an entire body part is removed, does not apply here because ICD-10-PCS treats named vein segments individually rather than the whole venous system as one body part.
ExtirpationExtirpation is distinguished because it removes abnormal solid matter such as thrombus from within the vein rather than removing vein wall tissue itself.