HCPCS Q4115: Skin substituteMedicare rate & RVUs in Florida
Reports AlloSkin human skin allograft supplied for wound coverage when furnished with a primary wound-treatment procedure.
Medicare pays $121.66–$132.47 for Q4115 in the office in Florida, from Rest Of Florida to Miami. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What Q4115 covers
Q4115 identifies AlloSkin, a human skin allograft product supplied for wound coverage. It may be used by clinicians treating wounds that require biologic skin coverage, including chronic ulcers or surgical wounds. The surgeon, podiatrist, or wound-care clinician applies the product in an outpatient wound-care or surgical setting. This code represents the product, not the work of preparing the wound or applying the graft.
Report Q4115 for the AlloSkin product furnished, using the HCPCS unit measure of one square centimeter and documenting the product, quantity, and treated wound. Pair it with the primary wound-treatment procedure; CMS classifies it as an add-on and places payment within that procedure's global period. This is a technical-component-only code, with interpretation represented by a separate code. The documentation should identify AlloSkin specifically so it is distinguishable from other skin substitute products.
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 Q4115 pays more and less in Florida
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$121.66 to $132.47
| Payment locality | Office | Facility |
|---|---|---|
| Fort Lauderdale | $128.91 | Unavailable |
| Miami | $132.47 | Unavailable |
| Rest Of Florida | $121.66 | Unavailable |
How the Q4115 rate is calculated
Each of Q4115’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.
How the rate is built · Q4115
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.00Practice expense 3.81Malpractice 0.00
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for Q4115
The CMS indicators that decide how Q4115 is paid alongside other services.
CMS payment indicators · Q4115
Skin substitute
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 3 | Technical component only. |
Q4115 compared with similar codes
Compare codes
Q4115 vs Q4123 vs Q4116 vs 15271: national Medicare rates
Swap in your local Medicare rate.
How to choose
- Q4123AlloSkin graft
- Q4123 identifies AlloSkin RT; Q4115 identifies AlloSkin. Select the code that matches the product furnished.
- Q4116Dermal matrix
- Q4116 identifies AlloDerm, not AlloSkin. The product name in the record determines which product code applies.
- 15271Skin substitute graft
- 15271 reports the application procedure for skin substitute grafts at specified sites and area ranges. Q4115 identifies the AlloSkin product supplied for that treatment.
Q4115 billing questions
Is Q4115 the code for applying the graft?
No. Q4115 identifies the AlloSkin product; report the applicable primary procedure for wound preparation and graft application.
What unit does Q4115 use?
The unit is one square centimeter. Document the AlloSkin quantity furnished and reported.
Can Q4115 be reported by itself?
No. CMS classifies it as an add-on code that must be billed with a primary procedure, with payment within that procedure's global period.
What documentation supports Q4115?
Record the product as AlloSkin, the quantity furnished, the wound treated, and the primary wound-treatment procedure performed.
How does Q4115 differ from Q4123?
Q4115 identifies AlloSkin, while Q4123 identifies AlloSkin RT. Report the code matching the product actually furnished.
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
Show the CMS file lines behind this rate
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