Summary & Overview
HCPCS Q4296: Rebound Matrix, Per Square Centimeter
HCPCS Level II code Q4296 denotes a rebound matrix product billed per square centimeter as an add-on to a primary procedure. Rebound matrices are used as adjunctive biomaterials in wound care and tissue repair, and coding this item separately allows tracking of product-specific utilization and cost when applied in addition to a covered procedure. Nationally, accurate use of this add-on code supports appropriate claims adjudication, supply cost accounting, and clinical documentation linking product application to the primary service.
Key payers in this discussion include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what the code represents, the clinical settings where it is typically applied, and the implications for billing workflows. The publication also summarizes common modifiers associated with add-on and supply reporting, outlines expected sites of service for application, and notes where input data was not provided.
This summary is intended to provide clinicians, coding professionals, and policy stakeholders with a clear national perspective on HCPCS Level II code Q4296, including when the code is used and what to expect in payer coverage discussions and administrative processing. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code Q4296 describes a rebound matrix, billed per square centimeter. This is an add-on, list separately item intended to be reported in conjunction with a primary procedure when a rebound matrix product is applied to a wound or treatment site.
Service type: Wound care adjunct / biomaterial application
Typical site of service: Outpatient clinic, ambulatory surgery center, wound care center, or other settings where topical adjunctive wound therapies are applied
Clinical & Coding Specifications
Clinical Context
A patient presents to an outpatient wound care clinic after surgical debridement of a chronic non-healing lower-extremity ulcer. The wound care nurse and physician evaluate the wound dimensions and determine placement of a biologic scaffold. The provider orders a Q4296 reagent: a rebound matrix graft applied per square centimeter as an add-on material to the primary procedure (for example, surgical wound reconstruction or application of a biologic dressing). The device is measured and billed per square centimeter in addition to the primary procedure code for wound debridement, excision, or reconstruction. Typical workflow: pre-procedure wound assessment and measurement; documentation of wound size and indication; procurement and sizing of the rebound matrix; application to the wound bed in a procedure room or minor operating suite under local anesthesia; photographic documentation and product lot/size recorded in the chart; post-application dressing and follow-up instructions. Typical sites of service include outpatient wound care clinics, ambulatory surgery centers, and hospital outpatient departments. Typical patient scenario includes patients with chronic diabetic foot ulcers, venous stasis ulcers, pressure injuries, or traumatic soft-tissue defects requiring biologic scaffold augmentation to promote granulation and tissue regeneration.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Default/No modifier |