Summary & Overview
HCPCS Q4405: Xwrap Fenestra Plus, Device Add-on per sq cm
HCPCS Level II code Q4405 denotes the Xwrap fenestra plus, billed per square centimeter as an add-on device or material reported in addition to a primary procedure. As an add-on HCPCS device code, Q4405 matters nationally because it affects supply-line reimbursement for surgical procedures that incorporate adjunctive implantable or intraoperative materials priced by area. Proper reporting of this code ensures separation of the primary procedure from supplemental device charges and supports accurate claims adjudication and cost accounting across payers.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of the code’s clinical context, the applicable service settings, and what to expect from payer coverage practices. The publication outlines benchmarks related to add-on device reporting, common billing considerations for per-square-centimeter device codes, and policy or coverage themes affecting HCPCS add-on items. It also highlights areas where payers typically require documentation and how reporting practices influence reimbursement and claims processing for surgical supply items. Data not available in the input for specific modifiers, taxonomies, ICD-10 pairings, or payer-specific policy details are noted as unavailable in respective sections.
Billing Code Overview
HCPCS Level II code Q4405 describes the Xwrap fenestra plus, billed per square centimeter as an add-on item to be listed separately in addition to a primary procedure. This code represents a device-component or material that augments or modifies a primary surgical procedure and is reported on a per-square-centimeter basis.
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Service type: Device/material add-on for surgical procedures
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Typical site of service: Hospital operating room or ambulatory surgery center (in settings where the primary procedure is performed)
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with a complex ventral hernia undergoes open or laparoscopic hernia repair with placement of a fenestrated biologic or synthetic mesh component that requires an additional fenestrated reinforcement product billed per square centimeter. The typical workflow begins with preoperative evaluation in a general surgery or colorectal clinic, imaging confirmation of hernia size and location, and operative planning that specifies primary hernia repair CPT(s) with an add-on fenestrated patch product. In the operating room the surgeon measures the area of the fenestrated patch used (in cm2) and documents the product Q4405 — "Xwrap fenestra plus, per square centimeter (add-on, list separately in addition to primary procedure)" — in the operative report and implant log. Billing is submitted as an add-on HCPCS Level II code in conjunction with the primary hernia repair CPT(s), with product unitization tied to documented square centimeters used. Typical sites of service include inpatient hospital operating room and ambulatory surgical center. Common clinical scenarios include recurrent or large ventral/incisional hernias, complex abdominal wall reconstruction, and cases requiring fenestrated or specialized mesh to accommodate drainage or tissue ingrowth.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
59 | Distinct procedural service | When the primary CPT and an additional unrelated procedure are performed on the same day and need separation from the primary repair (use with caution; use modifier or where appropriate). |