Q4242
No office rateAmniocyte plus, per 0.5 cc
Q4242 identifies Amniocyte Plus and uses a 0.5-cc unit. Q4243 identifies AmchoMatrix and uses a square-centimeter unit.
On this page
CMS RVU26D · Effective 2026-10-01
Q4243 Wound product Medicare reimbursement rates in Missouri
Report AmchoMatrix by the square centimeter when this wound product is furnished with a primary wound-application procedure. Compare Q4243 office and facility rates across CMS payment localities in Missouri.
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 Q4243 in Missouri?
Missouri has 3 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 3 payment areas shown below, using the same CMS release.
Office / nonfacility
$109.70–$121.15
3 of 3 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.
Where Q4243 pays more and less in Missouri
3 payment localities
$109.70 to $121.15
Wound care
About Q4243: AmchoMatrix wound product by area
Report AmchoMatrix by the square centimeter when this wound product is furnished with a primary wound-application procedure.
Q4243 identifies AmchoMatrix, a wound product supplied and measured by area. It may be used in wound care when a clinician applies the product to a wound as part of a primary procedure. Wound-care clinicians, podiatrists, and surgeons may encounter it in outpatient wound clinics, offices, or hospital settings. The product code represents the material, not the clinician’s wound preparation or application service.
Report the quantity in square centimeters and pair Q4243 with the primary procedure for the wound application. The record should identify the product and document the treated wound and the amount furnished. CMS classifies Q4243 as an add-on code: it is billed only with a primary procedure and paid within that procedure’s global period. It is also a technical-component-only code; a separate code covers interpretation.
CMS billing rules for Q4243
- 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.
Q4243 compared with similar codes
Office rates for Missouri, from the same CMS release.
$109.70–$121.15
Q4232 identifies Corplex, while Q4243 identifies AmchoMatrix. Both are measured per square centimeter, so distinguish them by the product furnished.
$109.70–$121.15
Q4247 identifies the Amniotext patch and is measured per square centimeter. Q4243 is the AmchoMatrix product; choose according to the product used.
Compare Q4243 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.
3 of 3 payment localities
Metropolitan Kansas City →
Office / nonfacility
$119.49
Facility
Unavailable
Metropolitan St. Louis →
Office / nonfacility
$121.15
Facility
Unavailable
Rest Of Missouri →
Office / nonfacility
$109.70
Facility
Unavailable
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Q4243 billing questions
How is Q4243 different from Q4242?
Q4243 identifies AmchoMatrix and is measured per square centimeter. Q4242 identifies Amniocyte Plus and is measured per 0.5 cc; select the code for the product actually furnished.
Can Q4243 be billed by itself?
No. CMS identifies it as an add-on code that must be billed with a primary procedure. For wound application, the primary procedure may be selected from the applicable skin-substitute application codes.
What documentation supports the units?
Document that AmchoMatrix was used, identify the treated wound, and record the amount furnished in square centimeters.
Does Q4243 include interpretation?
No. CMS classifies Q4243 as technical-component-only; a separate code covers interpretation.
How does the global-period rule affect payment?
Q4243 is paid within the global period of the primary procedure with which it is reported.
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.
18,329Q4240,,Corecyte topical only 0.5 cc,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
18,330Q4241,,"Polycyte, topical only 0.5cc",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
18,331Q4242,,"Amniocyte plus, per 0.5 cc",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
18,332Q4243,,"Amchomatrix, per sq cm",A,,0.00,3.81,,3.81,NA,0.00,3.81,3.81,3,ZZZ,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
18,333Q4245,,"Amniotext, per cc",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
18,334Q4246,,"Coretext or protext, per cc",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
18,335Q4247,,"Amniotext patch, 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