ICD-10-PCS Billable Code

0BU40KZ

Supplement Upper Lobe Bronchus, Right to No Qualifier with Nonautologous Tissue Substitute, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemB Respiratory System
OperationU Supplement
Body Part4 Upper Lobe Bronchus, Right
Approach0 Open
DeviceK Nonautologous Tissue Substitute
QualifierZ No Qualifier

Operation Definition

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

Procedure Overview

This family covers procedures that reinforce or add bulk to a weakened or structurally deficient part of the airway or its supporting structures, such as the trachea, bronchi, or diaphragm, using either the patient's own tissue, donor tissue, or a synthetic material like mesh or a patch. The goal is not to replace the body part but to shore it up so it can keep doing its normal job - for example, patching a floppy section of trachea that collapses with breathing, or reinforcing a diaphragm that has thinned or herniated. Surgeons turn to these procedures when a segment of the airway or diaphragm is intact but too weak or malformed to function reliably on its own.

Patients typically encounter this after a diagnosis of tracheomalacia, a diaphragmatic defect, or a previous repair that has stretched or failed over time. Because the underlying anatomy stays in place and is simply strengthened, recovery generally focuses on protecting the reinforced area from strain while it heals into the surrounding tissue.

Anatomy & Axis Detail

Upper Lobe Bronchus, Right

The right upper lobe bronchus supplies the apical, posterior, and anterior segments of the right lung's uppermost lobe, and its short course off the main bronchus leaves little margin for error when reinforcing its wall. Supplementation is generally undertaken after localized tumor excision or bronchoplastic repair for a stricture, using grafted tissue to restore luminal integrity where native wall has been removed or thinned rather than performing a full sleeve resection. Because this bronchus branches early and at a relatively acute angle from the right main bronchus, care is taken during reinforcement to avoid narrowing the orifice, which would compromise ventilation to the entire upper lobe. Its proximity to the azygos vein arching over it also factors into surgical planning.

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.

Device: Nonautologous Tissue Substitute

Nonautologous Tissue Substitute refers to biologic material sourced from a donor or another species, such as an allograft or xenograft, used to replace a body part. It differs from Autologous Tissue Substitute by tissue origin outside the patient's own body, and from Synthetic Substitute by being biologic rather than manufactured material.

Coding & Documentation

Coders assign Supplement here when the operative note describes material being laid onto or into an existing body part to add support or bulk, not to replace it outright - watch for phrasing like "reinforced with mesh," "patch graft applied," or "augmented." The documentation needs to identify the specific body part reinforced and the type of material used, since the device character value (autologous, synthetic, nonautologous) changes based on it.

The most common error is confusing Supplement with Replacement when a device fully substitutes for a body part rather than reinforcing it, or missing that a repair using only suture material (no separate device) should instead be coded as Repair.

Commonly Confused With

ReplacementReplacement is the frequent point of confusion: Replacement takes a body part completely out and puts a substitute in its place, while Supplement leaves the native structure intact and adds material to it.
RepairRepair is another close neighbor - if the operative note shows only sutures closing a defect with no reinforcing material left behind, that's Repair, not Supplement.