ICD-10-PCS Billable Code

03LU0ZZ

Occlusion Thyroid Artery, Right to No Qualifier with No Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System3 Upper Arteries
OperationL Occlusion
Body PartU Thyroid Artery, Right
Approach0 Open
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Completely closing an orifice or the lumen of a tubular body part

Procedure Overview

Occlusion procedures on the upper arteries close off the lumen of a vessel completely, cutting off blood flow through that specific segment. Surgeons and interventional specialists use this approach to stop bleeding, seal off an aneurysm, or block blood supply to a tumor or an abnormal tangle of vessels before it can cause harm. The upper arteries covered here include branches such as the innominate, subclavian, axillary, brachial, and the vessels supplying the head, neck, and upper limb.

A common reason for occluding one of these arteries is to treat an aneurysm that cannot be safely repaired by reinforcing its wall. Instead, the vessel feeding it is sealed so pressure inside the bulge drops and the risk of rupture falls. Occlusion is also used to control hemorrhage after trauma, to manage arteriovenous malformations, or to reduce blood flow to a vascular tumor before it is surgically removed, making the operation less bloody.

The closure itself may be achieved with a clip, a ligature, coils delivered through a catheter, or an injected embolic agent, and it can be done through an open incision or a minimally invasive endovascular route.

Anatomy & Axis Detail

Thyroid Artery, Right

The right thyroid artery, typically the superior thyroid branch off the external carotid or occasionally an inferior thyroid contribution from the subclavian system, is occluded to control hemorrhage during or after thyroid surgery, to manage bleeding from a hypervascular thyroid nodule or malignancy, or to reduce blood loss by preoperative embolization before resection of a large or vascular goiter. Because the thyroid gland receives dual blood supply from superior and inferior vessels bilaterally, occluding one right-sided arterial branch is generally well tolerated and does not compromise glandular viability when the remaining vessels are intact. This may be accomplished through direct ligation during open neck surgery or via transcatheter embolization for preoperative devascularization, and the right-sided designation should match the side of the thyroid lobe involved.

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

A coder selects an Occlusion code when the documentation shows the vessel's lumen is being shut down entirely, not narrowed or reinforced. The operative note needs to state which specific upper artery branch was targeted, the method used to achieve closure (clip, coil, plug, embolic material, or suture ligation), and whether the approach was open, percutaneous, or percutaneous endoscopic, since that determines the approach character of the code.

The most frequent assignment error is confusing Occlusion with Restriction, which only narrows the lumen rather than closing it off completely; the physician's language about "partial" versus "complete" closure is the deciding factor and should be confirmed rather than assumed. Another common mistake is missing that embolization procedures, though performed under interventional radiology, still map to Occlusion when the intent is total vessel closure, and coders sometimes miscode the device value when a liquid embolic agent is used instead of an intraluminal device.

Commonly Confused With

RestrictionRestriction is the closest relative and is easy to mix up with Occlusion, since both reduce blood flow through a vessel; the deciding factor is whether the lumen is narrowed (Restriction) or fully closed (Occlusion).
ExcisionExcision is sometimes confused with Occlusion when a segment of artery is tied off before being cut out, but if tissue is actually removed, Excision or Resection becomes the primary code and the ligation is typically not coded separately.
RepairRepair procedures on the same arteries can also be mistaken for Occlusion when a bleeding vessel is sutured closed, but Repair applies when the goal is restoring normal structure rather than permanently eliminating flow through that segment.