HCPCS Q4366: Amniotic membraneMedicare rate & RVUs

Medicare pays $127.26 for Q4366 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 Q4366 covers

Q4366 identifies the DL AmnioBUR X-Mem amniotic membrane product, counted by square centimeter. A wound-care physician, podiatrist, or surgeon may use it as a covering for a wound, such as a diabetic foot ulcer or venous leg ulcer, in an outpatient wound clinic or surgical setting. The product code represents the graft material, not the clinician’s work of preparing the wound or applying the graft.

Report the product only with a primary application procedure, such as the appropriate skin-substitute application code for the wound site and treated area. Document the product identity, wound location, area treated, and quantity used; report Q4366 units in square centimeters. CMS classifies Q4366 as a technical-component-only code, with interpretation covered by a separate code. Payment for this add-on is included within the primary procedure’s global period.

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 Q4366 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

Q4366 rates by state

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

How the Q4366 rate is calculated

Each of Q4366’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 Q4366

The CMS indicators that decide how Q4366 is paid alongside other services.

Q4366 compared with similar codes

How to choose

Q4365Wound product

Q4365 identifies a different AmnioBUR product. Choose between it and Q4366 by the specific product used, not simply because both are amniotic membrane grafts.

Q4364Amniotic membrane

Q4364 identifies another AmnioBUR product. Match the claim to the exact product name and labeling rather than treating these product codes as interchangeable.

Q4367Amniotic tissue product

Q4367 is a separate product code for Amniocore SL. Use Q4366 for DL AmnioBUR X-Mem, not for another amniotic membrane product.

Codes related to Q4366

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