HCPCS code Q4316: Wound graft, amchoplast, per square centimeter2026 Medicare rate & RVUs

Medicare pays $127.26 for Q4316 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 Q4316 covers

Q4316 identifies the Amchoplast product supplied for wound treatment, measured by the square centimeter. It is generally reported by a physician or other qualified practitioner treating wounds in an outpatient wound-care setting, alongside the procedure that applies the graft. The HCPCS product code identifies the specific material; it is not interchangeable with another graft product code simply because both are used in wound care.

Report units based on the Amchoplast quantity used, and document the product, treated wound, and amount applied. This is an add-on code: it must accompany a primary procedure and is paid within that procedure’s global period, rather than billed by itself. CMS classifies Q4316 as technical-component-only; a separate code covers interpretation. Skin substitute application procedures such as 15271, 15273, 15275, or 15277 may be the primary service, selected according to wound location and area.

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 Q4316 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

Q4316 rates by state

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

How the Q4316 rate is calculated

Each of Q4316’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 Q4316

The CMS indicators that decide how Q4316 is paid alongside other services.

Q4316 compared with similar codes

How to choose

15271Skin substitute graftFirst 25 cm², trunk/limbs

15271 reports the skin substitute application procedure for qualifying trunk, arm, or leg wounds; Q4316 reports the Amchoplast product used with a primary procedure.

15273Skin substitute graftLarge trunk or limb wound area

15273 is an application procedure for larger qualifying trunk, arm, or leg wounds. It does not identify the Amchoplast supply.

Q4317VitograftPer square centimeter

Q4317 identifies Vitograft by square centimeter, while Q4316 identifies Amchoplast. Select the product code that matches the material supplied.

Codes related to Q4316

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