Summary & Overview
HCPCS Q4362: Cygnus Disk, Per Square Centimeter
HCPCS Level II code Q4362 designates the Cygnus disk billed per square centimeter as an add-on supply reported in addition to a primary surgical or wound procedure. As an add-on HCPCS Level II code, Q4362 is relevant for facilities and providers that supply specialized disk material during operative or procedural care; accurate reporting affects billing completeness and downstream reimbursement adjudication. Nationally, use of device- and supply-specific add-on codes influences claims processing, device tracking, and utilization monitoring.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines which payers commonly recognize add-on device supply codes, expected claim presentation, and areas where policy variation occurs.
Readers will learn the clinical context for use of Q4362, typical sites of service where the code is applied, and the types of benchmarks and policy items to review when managing claims for add-on surgical supplies. The content summarizes payer coverage landscape, common billing practices for per-square-centimeter supplies, and pointers for coding completeness. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code Q4362 represents the Cygnus disk billed per square centimeter as an add-on, list separately in addition to primary procedure. This code is used when the product is supplied in conjunction with a primary surgical or wound procedure and is reported by area (square centimeter) of disk material provided.
Service Type: Surgical supply / implant adjunct
Typical Site of Service: Hospital outpatient department, ambulatory surgery center, or other procedural setting where the primary procedure is performed
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A patient with symptomatic lumbar degenerative disc disease or a failed prior fusion presents for spinal stabilization with an interbody device. During a posterior lumbar interbody fusion (PLIF) or transforaminal lumbar interbody fusion (TLIF), the surgeon selects a Cygnus intervertebral disc device sized and priced per square centimeter to augment disc space reconstruction. The device Q4362 is billed as an add-on supply in addition to the primary surgical procedure. Typical workflow: preoperative evaluation documents diagnosis and levels treated; intraoperative placement of the interbody device after disc preparation and trialing; device sizing measured in square centimeters for billing; documentation of device model, size, and implantation site in the operative report; postoperative imaging confirms placement and standard recovery and discharge planning follows. Typical sites of service include hospital inpatient operating room and hospital outpatient surgical center. Common patient features include focal radicular pain, neurogenic claudication, mechanical back pain, and radiographic evidence of disc degeneration, spondylolisthesis, or instability necessitating fusion.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Default / no modifier specified | Rarely used; typically left blank unless payer-specific requirement. |