HCPCS Q4330: Wound graftMedicare rate & RVUs

Medicare pays $127.26 for Q4330 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 Q4330 covers

Q4330 identifies Total, a wound graft or skin-substitute product, measured per square centimeter. A wound-care clinician, podiatrist, surgeon, or other treating practitioner may use the material on a wound bed as part of wound treatment. The product code identifies the material; it does not describe the clinical work of preparing the wound or applying the graft.

Report the number of square centimeters supported by the record, along with the primary procedure for the wound application. Documentation should identify Total as the product used and support the amount applied, such as through the treated wound’s dimensions and the amount of material used. CMS designates Q4330 as an add-on code: it must be billed with a primary procedure, and payment falls within that procedure’s global period. CMS also classifies it as technical-component-only; interpretation is represented by a separate code, not Q4330.

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 Q4330 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

Q4330 rates by state

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

How the Q4330 rate is calculated

Each of Q4330’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 Q4330

The CMS indicators that decide how Q4330 is paid alongside other services.

Q4330 compared with similar codes

How to choose

Q4329Wound graft

Q4329 identifies Singlay, while Q4330 identifies Total. Match the reported product to the product documented as used.

Q4331Wound matrix

Q4331 identifies Axolotl graft rather than Total. These product-specific codes are not interchangeable based only on the wound site.

15271Skin substitute graft

15271 reports the application service for qualifying trunk, arm, or leg wounds; Q4330 identifies the Total material supplied for that service.

Codes related to Q4330

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