$116.19–$122.80
Q4159 identifies Affinity, whereas Q4158 identifies Kerecis Omega3. Both are reported by square centimeter, so select the code matching the product used.
On this page
CMS RVU26D · Effective 2026-10-01
Q4158 Wound matrix Medicare reimbursement rates in Michigan
Q4158 reports Kerecis Omega3 fish-skin wound matrix by square centimeter when used with a primary skin substitute application procedure. Compare Q4158 office and facility rates across CMS payment localities in Michigan.
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 Q4158 in Michigan?
Michigan 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
$116.19–$122.80
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 product
About Q4158: Kerecis Omega3 wound matrix by area
Q4158 reports Kerecis Omega3 fish-skin wound matrix by square centimeter when used with a primary skin substitute application procedure.
Q4158 identifies Kerecis Omega3, a fish-skin wound matrix used as a biologic covering for wounds such as diabetic foot ulcers and venous leg ulcers. A wound-care clinician or surgeon applies the product to a prepared wound bed in an office, hospital outpatient department, or other treatment setting. The product is reported separately from the procedure used to apply it.
Report the quantity in square centimeters, supported by the product amount used and documentation of the treated wound and application. Pair Q4158 with the appropriate primary skin substitute application procedure for the wound site and area; it is not reported alone. CMS classifies Q4158 as an add-on code paid within the primary procedure’s global period. CMS also identifies it as technical-component-only, with interpretation covered by a separate code.
CMS billing rules for Q4158
- 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.
Q4158 compared with similar codes
Office rates for Michigan, from the same CMS release.
$116.19–$122.80
Q4160 identifies NuShield rather than Kerecis Omega3. The product identity, not the shared area-based unit, distinguishes these codes.
$150.00–$159.22
15271 reports the application procedure for qualifying wounds on the trunk, arms, or legs; Q4158 reports the Kerecis Omega3 product by area.
$152.99–$161.61
15275 reports the application procedure for qualifying wounds on the head, neck, hands, feet, or genitalia; Q4158 reports the product used.
Compare Q4158 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
Detroit →
Office / nonfacility
$122.80
Facility
Unavailable
Rest Of Michigan →
Office / nonfacility
$116.19
Facility
Unavailable
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Q4158 billing questions
Can Q4158 be billed without a wound application procedure?
No. CMS identifies Q4158 as an add-on code, so report it only with an appropriate primary skin substitute application procedure.
How should the Q4158 units be determined?
The descriptor is per square centimeter. Document the product amount used and the wound area treated to support the reported quantity.
Is the Kerecis product included in the application procedure?
Q4158 reports the product by area, while the primary procedure reports its application. Report both when the product is used and the application procedure is performed.
What should the record show for Q4158?
Document the wound site, treated area, Kerecis Omega3 product used, quantity in square centimeters, and the application procedure.
What does the technical-component-only designation mean for this code?
CMS lists Q4158 as technical-component-only and indicates that interpretation is covered by a separate code.
Does Q4158 have its own global period?
CMS treats it as an add-on paid within the primary procedure’s global period.
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.
18,248Q4155,,Neoxflo or clarixflo 1 mg,C,,0.00,0.00,,0.00,,0.00,0.00,0.00,3,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
18,249Q4156,,Neox 100 or clarix 100,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
18,250Q4157,,Revitalon 1 square 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
18,251Q4158,,"Kerecis omega3, 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
18,252Q4159,,Affinity1 square 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
18,253Q4160,,Nushield 1 square 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
18,254Q4161,,Bio-connekt per square 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