HCPCS code Q4240: Corecyte, topical, per 0.5 cc2026 Medicare rate & RVUs in Michigan
HCPCS Level II code Q4240 identifies Corecyte supplied for topical use, reported in 0.5 cc units when the product is furnished.
CMS doesn’t publish an office rate for Q4240 in Michigan.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
Your location
On this page 8 sections
What Q4240 covers
Q4240 identifies Corecyte supplied for topical use. The code measures the product by volume: each unit represents 0.5 cc. A 1 cc quantity therefore corresponds to 2 units. This differs from nearby product codes that identify other named products or use a different billing measure. The product name and 0.5 cc unit distinguish Q4240 from topical Polycyte and from Coretext or Protext, which are measured per cc.
Medicare assigns Q4240 status C, or carrier priced: it has no national physician fee schedule payment amount, and the Medicare Administrative Contractor prices each claim under the physician fee schedule. The contractor determines coverage. CMS classifies the code as technical-component-only, with a separate code covering interpretation.
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.
Where Q4240 pays more and less in Michigan
| Payment locality | Office | Facility |
|---|---|---|
| Detroit, MI | Unavailable | Unavailable |
| Rest of Michigan | Unavailable | Unavailable |
How the Q4240 rate is calculated
Each of Q4240’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · Q4240
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for Q4240
The CMS indicators that decide how Q4240 is paid alongside other services.
CMS payment indicators · Q4240
Corecyte, topical, per 0.5 cc
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 9 | The concept doesn’t apply. |
| Bilateral (modifier 50) | 9 | The concept doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 9 | The concept doesn’t apply. |
| Co-surgeons (62) | 9 | The concept doesn’t apply. |
| Team surgery (66) | 9 | The concept doesn’t apply. |
| Professional/technical | 3 | Technical component only. |
Q4240 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- Q4241PolycyteTopical, per 0.5 cc
- Q4240 identifies Corecyte, while Q4241 identifies Polycyte. Both are designated for topical use and measured per 0.5 cc.
- Q4242Amniocyte PlusPer 0.5 cc
- Q4242 identifies Amniocyte Plus rather than Corecyte. Both use a 0.5 cc unit.
- Q4246Coretext or ProtextPer cubic centimeter
- Q4246 identifies Coretext or Protext and is measured per cc. Q4240 identifies Corecyte and is measured per 0.5 cc.
Q4240 billing questions
How many units represent 1 cc?
Two units represent 1 cc because each unit is 0.5 cc.
How does Q4240 differ from Q4241?
Q4240 identifies Corecyte; Q4241 identifies Polycyte. Both are identified for topical use and measured per 0.5 cc.
How does Q4240 differ from Q4242?
Q4242 identifies Amniocyte Plus rather than Corecyte. Both use a 0.5 cc unit.
Does Q4240 have a national physician fee schedule payment amount?
No. Its status is C, and the Medicare Administrative Contractor prices each claim under the physician fee schedule.
Who determines Medicare coverage for Q4240?
The Medicare Administrative Contractor determines coverage.
Is interpretation included in Q4240?
Q4240 is classified as technical-component-only; a separate code covers interpretation.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Fee sheets · Coming soon
Put Q4240 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Join the waitlist