Summary & Overview
HCPCS Q4161: Bio-connekt Wound Matrix, Per Square Centimeter
HCPCS Level II code Q4161 designates the Bio-connekt wound matrix product billed per square centimeter as an add-on supply separate from the primary procedure. This code captures material use for topical wound matrix applications and is relevant for clinicians and facilities that perform advanced wound care. Nationally, use of product-specific HCPCS add-on codes matters for tracking utilization of biologic wound products, managing supply costs, and ensuring correct line-item reporting on claims.
Key payers in the landscape include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find information on clinical context for use of this wound matrix, where it is typically supplied and billed, and which payers commonly process such add-on HCPCS supply codes. The publication provides benchmarks and coding context where available, notes common billing practices, and highlights policy considerations for coverage and claim adjudication at a national level.
This summary is intended for billing professionals, clinical coders, and policy analysts seeking concise guidance on the clinical and billing role of HCPCS Level II code Q4161 in advanced wound care workflows. Data not available in the input will be identified in relevant sections.
Billing Code Overview
HCPCS Level II code Q4161 represents the Bio-connekt wound matrix, billed per square centimeter as an add-on supply reported separately in addition to the primary procedure. This code is used when a clinician or facility applies the Bio-connekt wound matrix product to a wound site and bills the material on a per-square-centimeter basis.
Service type: Wound care product / biologic matrix application
Typical site of service: Outpatient wound care clinic, hospital outpatient department, ambulatory surgical center, or other procedural settings where topical wound matrices are applied
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a chronic, non-healing lower-extremity wound (for example a diabetic foot ulcer or venous stasis ulcer) who has failed conservative wound care including debridement, offloading, infection control, and topical dressings. The wound care specialist or podiatrist evaluates the wound in an outpatient wound clinic or ambulatory surgery center and documents wound size, depth, percent granulation, presence of infection, vascular status, and prior treatments. After appropriate debridement and preparation of the wound bed, the clinician applies Bio-connekt wound matrix material measured in square centimeters as an adjunctive biologic matrix to promote tissue regeneration. The application is billed as an add-on supply Q4161 per square centimeter and appended to the primary wound procedure claim (for example debridement, skin grafting, or advanced dressing application). Typical sites of service include outpatient wound care clinics, physician offices, hospital outpatient departments, and ambulatory surgery centers. The patient encounter includes pre-procedure assessment, informed consent documentation for the biologic matrix application, measurement and photography of the wound, the procedural application, and post-application wound care instructions and follow-up planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — standard billing | Use when no specific modifier applies to the service or payment circumstance. |