$161.53
15271 reports a primary skin-substitute application service for eligible trunk, arm, or leg wounds. Q4359 reports the Choriply product and is paired with an appropriate primary procedure.
On this page
CMS RVU26D · Effective 2026-10-01
Q4359 Wound matrix Medicare reimbursement rates in Rhode Island
Reports the square centimeters of Choriply furnished for wound treatment, alongside the primary wound procedure that applies the placental-derived matrix. Compare Q4359 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 Q4359 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.
Wound care products
About Q4359: Choriply wound matrix supply
Reports the square centimeters of Choriply furnished for wound treatment, alongside the primary wound procedure that applies the placental-derived matrix.
Q4359 identifies the Choriply placental-derived wound matrix supplied for wound treatment; it represents the product, not the clinician’s work to prepare or apply it. Clinicians may use a wound matrix as part of care for a wound such as a chronic ulcer. The treating practitioner documents the wound and performs the associated application procedure in an office, hospital outpatient department, or other appropriate care setting.
Report the product in square-centimeter units and pair it with the applicable primary application procedure; the product code cannot stand alone. Documentation should identify Choriply, the treated wound, the amount supplied or applied in square centimeters, and the related procedure. CMS classifies Q4359 as an add-on paid within the primary procedure’s global period. CMS also classifies it as technical-component-only, with interpretation covered by a separate code when applicable; Q4359 represents the product rather than a professional interpretation.
CMS billing rules for Q4359
- 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.
Q4359 compared with similar codes
Office rates for Rhode Island, from the same CMS release.
$26.18
15272 reports an additional application service when applicable; it is not a product code. Q4359 reports Choriply by square centimeter.
$131.46
Q4360 identifies Amchoplast FD, not Choriply. Select the code for the specific product furnished.
Compare Q4359 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 Q4359 in Rhode Island.
PPRRVU2026_Oct_nonQPP.csv
18,446
- Code
- Q4359
- 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.
Q4359 billing questions
Should Q4359 be reported instead of the wound application procedure?
No. Q4359 reports the Choriply product and must be billed with a primary application procedure, such as an appropriate wound application code.
How should the units be counted?
Report the square centimeters of Choriply represented by the claim. Document the product and the quantity in square centimeters.
Can Q4359 be billed by itself?
No. CMS identifies it as an add-on code that is billed with a primary procedure and paid within that procedure’s global period.
Does Q4359 include the clinician’s work to apply Choriply?
No. Q4359 identifies the product. Report the applicable primary procedure for the wound application.
How does Q4359 differ from Q4360?
Q4359 identifies Choriply, while Q4360 identifies Amchoplast FD. They are separate product codes, not interchangeable codes for the same product.
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.
18,443Q4356,,Abio mem abio hyd per sq cm,A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
18,444Q4357,,"Xwrap plus, per sq cm",A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
18,445Q4358,,"Xwrap dual, per sq cm",A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
18,446Q4359,,"Choriply, per sq cm",A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
18,447Q4360,,Amchoplast fd per sq cm,A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
18,448Q4361,,"Epixpress, per sq cm",A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
18,449Q4362,,"Cygnus disk, per sq cm",A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
8912502,PA,01,METROPOLITAN PHILADELPHIA,1.018,1.041,1.193
9012502,PA,99,REST OF PENNSYLVANIA,1.000,0.918,0.945
9109202,PR,20,PUERTO RICO,1.000,1.011,0.985
9214412,RI,01,RHODE ISLAND,1.019,1.033,0.892
9311202,SC,01,SOUTH CAROLINA,1.000,0.924,0.850
9403402,SD,02,SOUTH DAKOTA**,1.000,1.000,0.336
9510312,TN,35,TENNESSEE,1.000,0.909,0.537