Summary & Overview
HCPCS Q4125: Arthroflex per Square Centimeter (Add-on)
HCPCS Level II code Q4125 designates Arthroflex billed per square centimeter as an add-on supply used in surgical soft-tissue repair and reconstruction. As an add-on code, Q4125 is reported in addition to the primary operative procedure to reflect the use of biologic graft material. Nationally, add-on material codes like this affect surgical cost accounting, payer coverage determinations, and procedural coding accuracy.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical role, typical sites of service, and common billing practices tied to add-on graft materials. The publication outlines benchmarks for utilization and reimbursement patterns where available, summarizes relevant policy considerations for coverage and documentation, and provides clinical context for when Arthroflex is applied during surgery.
This summary is intended for a national audience of coding professionals, surgical providers, and policy analysts seeking clarity on reporting and interpreting HCPCS Level II code Q4125 for Arthroflex.
Billing Code Overview
HCPCS Level II code Q4125 represents Arthroflex billed per square centimeter as an add-on, billed separately in addition to a primary procedure. This product is used in surgical settings to augment soft tissue repair and reconstruction where biologic or graft material is required.
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Service type: Surgical graft/supplemental biologic material
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Typical site of service: Operating room, outpatient surgical center, or hospital surgical suite
Clinical & Coding Specifications
Clinical Context
Arthroflex (Q4125) is an acellular dermal matrix graft billed per square centimeter as an add-on item to a primary surgical procedure. A typical patient is a 55-year-old male with chronic rotator cuff tear and failed previous repair who presents for revision rotator cuff reconstruction. During the operative procedure, the surgeon performs rotator cuff repair (primary CPT procedure) and augments the repair with Arthroflex to provide soft tissue support and biologic scaffold. The clinical workflow includes preoperative evaluation, intraoperative measurement of the defect to determine graft size in square centimeters, documentation of the area implanted, and listing Q4125 as an add-on charge appended to the primary procedure code. The implant is supplied sterile and must be documented in the operative note, including product name, lot number, size in square centimeters, and rationale for augmentation (e.g., tendon attenuation, poor tissue quality). Typical sites of service are hospital outpatient departments, ambulatory surgery centers, and inpatient operating rooms when combined with major orthopaedic procedures. Common scenarios also include complex knee ligament reconstructions, shoulder instability repairs, and soft tissue reconstruction where biologic reinforcement is clinically indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
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