Q4328 identifies Most, while Q4327 identifies Duoamnion. The product documentation determines which code to report.
On this page
CMS RVU26D · Effective 2026-10-01
Q4327 Amniotic allograft Medicare reimbursement rates in Rhode Island
Reports Duoamnion amniotic membrane allograft supplied for wound application, with units representing the square centimeters furnished alongside a primary procedure. Compare Q4327 office and facility rates across CMS payment localities in Rhode Island.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for Q4327 in Rhode Island?
Rhode Island has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$131.46
1 of 1 localities have a supported rate.
Payment area: Rhode Island
One mapped payment locality.
Facility setting
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Skin substitute supply
About Q4327: Duoamnion amniotic membrane allograft supply
Reports Duoamnion amniotic membrane allograft supplied for wound application, with units representing the square centimeters furnished alongside a primary procedure.
Q4327 identifies Duoamnion, a named amniotic membrane allograft supplied for application to a wound. Wound-care clinicians, including physicians and podiatrists, may use it as a covering on a prepared wound bed during outpatient wound treatment. The product line is distinct from the procedure used to prepare and apply the graft; wound debridement or other wound management may occur in the same encounter when separately supported.
Report Q4327 only with a primary procedure, commonly an appropriate skin-substitute application code from the 15271–15278 family, selected for the treated site and wound area. The product record and clinical documentation should identify Duoamnion, the wound treated, and the square centimeters furnished. CMS classifies Q4327 as an add-on code paid within the primary procedure’s global period, so it is not a stand-alone service. CMS also classifies it as technical-component-only; interpretation is represented by a separate code.
CMS billing rules for Q4327
- Global period
- Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
- Professional and technical components
- Technical-component-only code: a separate code covers interpretation.
Where the value comes from
- Work RVU0.00 · 0%
- Practice expense (office) RVU3.81 · 100%
- Malpractice RVU0.00 · 0%
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.
Q4327 compared with similar codes
Office rates for Rhode Island, from the same CMS release.
Q4329 identifies Singlay, not Duoamnion. Do not select between them based only on the shared per-square-centimeter unit.
15271 reports a primary skin-substitute application procedure; Q4327 reports the Duoamnion product as an add-on. The appropriate application code depends on the wound site and area.
Compare Q4327 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Rhode Island →
Office / nonfacility
$131.46
Facility
Unavailable
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for Q4327 in Rhode Island.
PPRRVU2026_Oct_nonQPP.csv
18,414
- Code
- Q4327
- Physician work
- 0.00
- Practice expense
- 3.81
- Malpractice
- 0.00
GPCI2026.csv
92
- Locality
- Rhode Island
- Physician work
- 1.019
- Practice expense
- 1.033
- Malpractice
- 0.892
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.00 | × 1.019 | 0.0000 |
| Practice expense | 3.81 | × 1.033 | 3.9357 |
| Malpractice | 0.00 | × 0.892 | 0.0000 |
| Total RVUs | 3.9357 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Rhode Island$131.46
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0 | 1.019 |
| Practice expense | 3.81 | 1.033 |
| Malpractice | 0 | 0.892 |
(0 × 1.019 + 3.81 × 1.033 + 0 × 0.892) × $33.4009 = $131.46
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
Q4327 billing questions
What distinguishes Q4327 from another per-square-centimeter graft code?
Q4327 identifies Duoamnion specifically. Select the code that matches the product record rather than choosing among graft codes by unit of measure alone.
Can Q4327 be billed by itself?
No. CMS identifies it as an add-on code that must be reported with a primary procedure; an appropriate skin-substitute application procedure is a common pairing.
How should units be determined?
The code is measured per square centimeter. The product and wound documentation should support the square centimeters reported.
Does Q4327 include interpretation?
No. CMS classifies Q4327 as technical-component-only and indicates that a separate code covers interpretation.
What documentation supports reporting Q4327?
Document the Duoamnion product used, the wound treated, the application procedure, and the square centimeters 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 indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
