HCPCS Q4279: Wound productMedicare rate & RVUs

Medicare pays $127.26 for Q4279 nationally in the office. Local office rates run $109.31–$183.51.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What Q4279 covers

Q4279 identifies Vendaje AC wound-covering product supplied for placement over a wound; it represents the product, not the work of applying it. Skin-substitute products may be used in managing chronic wounds such as diabetic foot or venous leg ulcers. A surgeon, podiatrist, or wound-care clinician may apply the product in an office or hospital outpatient setting. The code measures the product by square centimeter rather than describing a wound-care visit.

Report Q4279 only with a primary wound-application procedure. Select that procedure based on the treated anatomy and wound surface area, and report Q4279 units for the square centimeters of product supplied. Documentation should identify Vendaje AC, the wound site and dimensions, application details, and product quantity. CMS classifies Q4279 as an add-on paid within the primary procedure’s global period. It is technical-component-only; a separate code covers interpretation.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where Q4279 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

Q4279 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the Q4279 rate is calculated

Each of Q4279’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for Q4279

The CMS indicators that decide how Q4279 is paid alongside other services.

Q4279 compared with similar codes

How to choose

15271Skin substitute graft

15271 reports the wound-application procedure for qualifying trunk or extremity sites; Q4279 identifies the Vendaje AC product used with a primary procedure.

15275Skin substitute

15275 is the application procedure for qualifying sites such as the head, hands, or feet. Q4279 reports product rather than application work.

Q4274Wound graft

Q4274 identifies Esano AC, a separately named product. Q4279 is specific to Vendaje AC; use the code matching the product supplied.

Q4280Amniotic matrix

Q4280 identifies Xcell amnio matrix. Q4279 identifies Vendaje AC, so the product name distinguishes the supply codes.

Codes related to Q4279

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates