Q4387 identifies Neothelium FT; Q4388 identifies Neothelium 4L. Match the code to the product variant supplied.
On this page
CMS RVU26D · Effective 2026-10-01
Q4388 Wound product Medicare reimbursement rates in Oklahoma
Q4388 identifies Neothelium 4L wound product by square centimeter when supplied for application during a wound procedure. Compare Q4388 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 Q4388 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.
Skin substitute products
About Q4388: Neothelium 4L wound product
Q4388 identifies Neothelium 4L wound product by square centimeter when supplied for application during a wound procedure.
Q4388 represents the Neothelium 4L product supplied for wound treatment, measured by square centimeter. It is typically associated with application to a wound, such as a chronic diabetic foot ulcer or venous leg ulcer, by a wound-care clinician, podiatrist, or surgeon in an office or hospital outpatient setting. The code identifies the product, not the clinical assessment or wound-preparation work.
Report the number of square centimeters represented by the product supplied, and retain documentation identifying the product, wound site, treated area, and amount used. Q4388 is an add-on code: report it only with a primary procedure, and its payment is within that procedure’s global period. CMS classifies it as technical-component-only; a separate code covers interpretation. Neothelium 4L is distinct from other Neothelium product variants, so use the product identification and applicable code rather than selecting by brand name alone.
CMS billing rules for Q4388
- 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.
Q4388 compared with similar codes
Office rates for Oklahoma, from the same CMS release.
Q4389 identifies Neothelium 4L+, not Neothelium 4L. The shared brand does not make the product codes interchangeable.
15271 reports the application procedure for qualifying wounds on the trunk, arms, or legs. Q4388 identifies the Neothelium 4L product supplied with a primary procedure.
Compare Q4388 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 Q4388 in Oklahoma.
PPRRVU2026_Oct_nonQPP.csv
18,473
- Code
- Q4388
- 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.
Q4388 billing questions
Can Q4388 be reported by itself?
No. CMS identifies it as an add-on code, so it must be reported with a primary procedure.
How are units determined?
The descriptor is per square centimeter. Document the wound area treated and the amount of Neothelium 4L supplied.
How does Q4388 differ from Q4387?
Both identify Neothelium products, but Q4388 is the 4L variant and Q4387 is Neothelium FT. Select the code matching the product supplied.
How does Q4388 differ from Q4389?
Q4389 identifies Neothelium 4L+, a separately coded variant. Do not substitute it for Q4388 based only on the shared Neothelium name.
Does Q4388 include interpretation?
No. CMS classifies Q4388 as technical-component-only, with interpretation represented by a separate code.
What documentation supports Q4388?
Record the product as Neothelium 4L, the wound location and treated area, and the quantity supplied in square centimeters.
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.
