$113.64
Q4198 identifies Genesis amniotic membrane; Q4186 identifies EpiFix. Choose the code matching the product supplied, not simply the wound type.
On this page
CMS RVU26D · Effective 2026-10-01
Q4198 Amniotic membrane Medicare reimbursement rates in Oklahoma
Q4198 reports Genesis amniotic membrane supplied for wound coverage, measured in square centimeters and billed with the primary application procedure. Compare Q4198 office and facility rates across CMS payment localities in Oklahoma.
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 Q4198 in Oklahoma?
Oklahoma 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
$113.64
1 of 1 localities have a supported rate.
Payment area: Oklahoma
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 product
About Q4198: Genesis amniotic membrane supply
Q4198 reports Genesis amniotic membrane supplied for wound coverage, measured in square centimeters and billed with the primary application procedure.
Q4198 represents Genesis amniotic membrane used as a wound-covering product during treatment of a wound. A wound care clinician, surgeon, or other qualified practitioner may apply the membrane to a prepared wound bed in an office or facility setting. The code reports the product, not the clinical work of evaluating the wound or performing the application.
Report one unit for each square centimeter of Genesis membrane supplied, with the primary procedure for applying the product. The record should identify Genesis, document the wound site and size, and support the quantity applied. CMS classifies Q4198 as an add-on code: it is not billed alone, and its payment is within the primary procedure’s global period. It is also a technical-component-only code; a separate code covers interpretation.
CMS billing rules for Q4198
- 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.
Q4198 compared with similar codes
Office rates for Oklahoma, from the same CMS release.
$113.64
Q4187 identifies Epicord rather than Genesis. Both use a square-centimeter unit, but the product identity determines the HCPCS code.
$113.64
Q4199 identifies Cygnus Matrix, not Genesis amniotic membrane. Report the code corresponding to the product used.
Compare Q4198 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
Oklahoma →
Office / nonfacility
$113.64
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 Q4198 in Oklahoma.
PPRRVU2026_Oct_nonQPP.csv
18,290
- Code
- Q4198
- Physician work
- 0.00
- Practice expense
- 3.81
- Malpractice
- 0.00
GPCI2026.csv
86
- Locality
- Oklahoma
- Physician work
- 1.000
- Practice expense
- 0.893
- Malpractice
- 0.777
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.00 | × 1.000 | 0.0000 |
| Practice expense | 3.81 | × 0.893 | 3.4023 |
| Malpractice | 0.00 | × 0.777 | 0.0000 |
| Total RVUs | 3.4023 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Oklahoma$113.64
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0 | 1 |
| Practice expense | 3.81 | 0.893 |
| Malpractice | 0 | 0.777 |
(0 × 1 + 3.81 × 0.893 + 0 × 0.777) × $33.4009 = $113.64
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.
Q4198 billing questions
What does one unit of Q4198 represent?
One unit represents one square centimeter of Genesis amniotic membrane. Document the product and the area supplied or applied.
Can Q4198 be billed by itself?
No. CMS identifies it as an add-on code that must be billed with a primary procedure.
Which application procedure should accompany Q4198?
Pair it with the primary procedure that describes application of the wound-covering product. Select the application code according to the documented wound site and area.
Is Q4198 the code for the clinician’s application work?
No. Q4198 reports the Genesis product. The primary procedure reports the application service.
What does the technical-component-only designation mean?
CMS classifies Q4198 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.
18,287Q4195,,Puraply 1 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
18,288Q4196,,Puraply am 1 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
18,289Q4197,,Puraply xt 1 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
18,290Q4198,,Genesis amnio membrane 1sqcm,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
18,291Q4199,,"Cygnus matrix, 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
18,292Q4200,,Skin te 1 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
18,293Q4201,,Matrion 1 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
8311502,NC,00,NORTH CAROLINA,1.000,0.933,0.639
8403302,ND,01,NORTH DAKOTA**,1.000,1.000,0.406
8515202,OH,00,OHIO,1.000,0.913,1.008
8604312,OK,00,OKLAHOMA,1.000,0.893,0.777
8702302,OR,01,PORTLAND,1.016,1.111,0.744
8802302,OR,99,REST OF OREGON,1.000,0.996,0.703
8912502,PA,01,METROPOLITAN PHILADELPHIA,1.018,1.041,1.193