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HCPCS code Q4230: Cogenex flowable amnion, per 0.5 cc2026 Medicare rate & RVUs

Cogenex flowable amnion is reported by volume, with each Q4230 unit representing 0.5 cc and Medicare payment and coverage determined by the contractor.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare rate · Q4230

Cogenex flowable amnion, per 0.5 cc

Office or facility?

Work RVUs
0
Total RVUs
0.00
Global days
XXX

National rate · 2026

—

Not priced in the facility setting.

See every locality for Q4230 →Billed by an NP, PA or therapist? →

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

Medicare pays by the payment locality where the service is performed.

On this page 9 sections
  1. Medicare rate
  2. What Q4230 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Billing questions
  9. Sources

What Q4230 covers

Q4230 identifies Cogenex flowable amnion as a product reported by volume. Each claim unit represents 0.5 cc, making the billed quantity a measure of product volume. This distinguishes Q4230 from Q4229, which identifies Cogenex amniotic membrane by surface area. For example, 1 cc of Cogenex flowable amnion corresponds to 2 Q4230 units. The code identifies the product quantity; CMS classifies it as technical-component-only, with interpretation covered by a separate code.

Medicare lists Q4230 as carrier priced (status C), meaning the Medicare Administrative Contractor sets payment for each claim. CMS assigns contractor pricing under the physician fee schedule and leaves coverage to the contractor's judgment. Thus, payment and coverage determinations are made by the contractor, while reported units reflect 0.5 cc each.

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 Q4230 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

Q4230 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailableUnavailable
AlaskaUnavailableUnavailable
ArizonaUnavailableUnavailable
ArkansasUnavailableUnavailable
Atlanta, GAUnavailableUnavailable
Austin, TXUnavailableUnavailable
Bakersfield, CAUnavailableUnavailable
Baltimore area, MDUnavailableUnavailable
Beaumont, TXUnavailableUnavailable
Brazoria, TXUnavailableUnavailable

Q4230 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
Q4230 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the Q4230 rate is calculated

Each of Q4230’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 · Q4230

RVUs × geographic indexes × conversion factor

Office or facility?

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 Q4230

The CMS indicators that decide how Q4230 is paid alongside other services.

CMS payment indicators · Q4230

Cogenex flowable amnion, per 0.5 cc

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures9The concept doesn’t apply.
Bilateral (modifier 50)9The concept doesn’t apply.
Assistant at surgery (80/81/82/AS)9The concept doesn’t apply.
Co-surgeons (62)9The concept doesn’t apply.
Team surgery (66)9The concept doesn’t apply.
Professional/technical3Technical component only.

Q4230 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • Q4230

    Cogenex flowable amnion, per 0.5 cc0 wRVU

    Not priced

  • Q4229

    Amniotic membrane, cogenex, per square centimeter0 wRVU

    $127.26

  • Q4233

    Surfactor or Nudyn, per 0.5 cc0 wRVU

    Not priced

  • Q4242

    Amniocyte Plus, per 0.5 cc0 wRVU

    Not priced

How to choose

Q4229Amniotic membraneCogenex, per square centimeter
Q4230 identifies Cogenex flowable amnion measured by volume; Q4229 identifies Cogenex amniotic membrane measured by surface area.
Q4233Surfactor or NudynPer 0.5 cc
Both codes use 0.5 cc units, but Q4233 identifies Surfactor or Nudyn rather than Cogenex flowable amnion.
Q4242Amniocyte PlusPer 0.5 cc
Q4242 identifies Amniocyte Plus. Q4230 identifies Cogenex flowable amnion.

Q4230 billing questions

How many Q4230 units represent 1 cc?

Each unit represents 0.5 cc, so 1 cc corresponds to 2 units.

How does Q4230 differ from Q4229?

Q4230 identifies Cogenex flowable amnion measured by volume. Q4229 identifies Cogenex amniotic membrane measured by surface area.

Does Q4230 include interpretation?

No. CMS classifies Q4230 as technical-component-only; a separate code covers interpretation.

Who determines Medicare payment and coverage?

The Medicare Administrative Contractor sets payment for each claim and makes the coverage determination.

What quantity should documentation support?

Document the Cogenex flowable amnion and the volume represented by the billed units, with each unit representing 0.5 cc.

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

Open CMS sourceHow we calculate rates

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