$155.49–$168.32
15271 reports the application procedure for a qualifying wound at its specified anatomic sites; Q4128 identifies the FlexHD or AlloPatch HD product used with a primary application procedure.
On this page
CMS RVU26D · Effective 2026-10-01
Q4128 Skin matrix Medicare reimbursement rates in Oregon
Reports FlexHD or AlloPatch HD biologic matrix by square centimeter when supplied for a skin-substitute application procedure. Compare Q4128 office and facility rates across CMS payment localities in Oregon.
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 Q4128 in Oregon?
Oregon has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
$126.75–$141.38
2 of 2 localities have a supported rate.
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 products
About Q4128: FlexHD or AlloPatch HD skin matrix
Reports FlexHD or AlloPatch HD biologic matrix by square centimeter when supplied for a skin-substitute application procedure.
Q4128 identifies FlexHD or AlloPatch HD, human-derived biologic matrices used as skin substitutes to cover a wound or support tissue repair. The product may be supplied for wound-care or surgical treatment, with the clinician selecting and applying it to the prepared site. The code represents the named product, not the work of preparing the wound or applying the matrix.
Report Q4128 with the primary procedure for the skin-substitute application, not as a stand-alone service. Units are based on the documented square centimeters of product reported; the record should identify the product, wound site, and amount used. CMS treats this as an add-on code, so payment falls within the primary procedure's global period. CMS classifies it as technical-component-only; a separate code covers interpretation.
CMS billing rules for Q4128
- 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.
Q4128 compared with similar codes
Office rates for Oregon, from the same CMS release.
$126.75–$141.38
Q4121 identifies TheraSkin. Choose the product code that matches the specific skin substitute supplied; it is not interchangeable with Q4128.
$126.75–$141.38
Q4122 identifies DermACELL AWM. Q4128 is specific to FlexHD or AlloPatch HD, even when the products serve a similar treatment purpose.
Compare Q4128 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.
2 of 2 payment localities
Portland →
Office / nonfacility
$141.38
Facility
Unavailable
Rest Of Oregon →
Office / nonfacility
$126.75
Facility
Unavailable
Need rates for a whole code list?
Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.
Q4128 billing questions
Is Q4128 the application procedure?
No. Q4128 identifies the FlexHD or AlloPatch HD product. Report the applicable skin-substitute application procedure separately as the primary service.
Can Q4128 be billed by itself?
No. CMS identifies it as an add-on code that must be billed with a primary procedure.
How are units determined?
Report the product quantity in square centimeters and document the product and wound site. The code descriptor identifies the unit as one square centimeter.
How does the global-period rule affect payment?
Payment for Q4128 is included within the global period of the primary procedure. It is not paid as a separate stand-alone service outside that procedure.
Does Q4128 include interpretation?
No. CMS classifies Q4128 as technical-component-only, with interpretation covered by a separate code.
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.
18,221Q4125,,Arthroflex,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
18,222Q4126,,Memoderm/derma/tranz/integup,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
18,223Q4127,,Talymed,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
18,224Q4128,,Flexhd/allopatchhd/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
18,225Q4130,,Strattice tm,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
18,226Q4132,,"Grafix core, grafixpl core",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
18,227Q4133,,Grafix stravix prime pl sqcm,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