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Billing code 27430: QuadricepsplastyMedicare rate & RVUs

Reports surgical lengthening or release of contracted quadriceps muscle to improve knee flexion, often for persistent post-traumatic stiffness.

CMS RVU26DEffective Oct 1, 2026109 payment localities1.3K Medicare services in 2024

Medicare pays $699.08 for 27430 nationally in a facility.

Medicare rate · 27430

Quadricepsplasty

Swap in your local Medicare rate.

Work RVUs
9.91
Total RVUs
20.93
Global days
090

National rate · 2026

$699.08

Facility setting, before claim adjustments.

See every locality for 27430 → · 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.

On this page 10 sections
  1. Medicare rate
  2. What 27430 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 27430 covers

A quadricepsplasty releases or lengthens a shortened quadriceps mechanism that is restricting knee flexion. Orthopedic surgeons commonly perform it for persistent stiffness after trauma, such as a distal femur fracture, when scarred or contracted thigh muscle limits motion. It is an open operative treatment, generally performed in a hospital or ambulatory surgical setting, rather than a manipulation or ligament reconstruction.

Report 27430 when the operative work is quadricepsplasty; the operative note should identify the contracture, its effect on knee motion, and the muscle release or lengthening performed. The code has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is not permitted.

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 27430 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

27430 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$631.40
Alaska*Unavailable$852.45
ArizonaUnavailable$679.74
ArkansasUnavailable$623.05
AtlantaUnavailable$718.94
AustinUnavailable$709.03
BakersfieldUnavailable$706.55
Baltimore/Surr. CntysUnavailable$742.75
BeaumontUnavailable$667.29
BrazoriaUnavailable$683.62

27430 rates by state

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

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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
27430 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 27430 rate is calculated

Each of 27430’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 · 27430

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 9.91Practice expense 8.92Malpractice 2.10

20.9300 adjusted RVUs×$33.4009 conversion factor=$699.08

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 27430

27430 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 27430

Quadricepsplasty

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.69/0.21Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 27430

Quadricepsplasty

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

27430 without 50 · national facility

$699.08

Quadricepsplasty

27430-50 · Bilateral: 150%

$1,048.62

Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).

When to use modifier 50

27430 compared with similar codes

Compare codes

27430 vs 27570 vs 27435 vs 27427: national Medicare rates

Swap in your local Medicare rate.

  • 27430
    Quadricepsplasty · 9.91 wRVU
    —
  • 27570
    Knee manipulation · 1.75 wRVU
    —
  • 27435
    Knee capsulotomy · 10.61 wRVU
    —
  • 27427
    Knee reconstruction · 9.55 wRVU
    —

How to choose

27570Knee manipulation
Use 27570 for manipulation of a stiff knee under anesthesia. Use 27430 when the surgeon releases or lengthens contracted quadriceps muscle.
27435Knee capsulotomy
Code 27435 describes release involving the knee capsule; 27430 concerns quadriceps muscle contracture limiting knee flexion.
27427Knee reconstruction
Code 27427 is for extra-articular knee ligament reconstruction to address instability. It does not describe quadriceps release for restricted flexion.

Codes related to 27430

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 27430
CodeHow it relatesNational office range
Used instead
27570Knee manipulationManipulation under anesthesia treats restricted knee motion without quadricepsplasty.No office rate
27435Knee capsulotomyKnee capsular release addresses restriction arising from the capsule rather than quadriceps contracture.No office rate

27430 billing questions

When is quadricepsplasty appropriate instead of knee manipulation?

Report 27430 for operative release or lengthening of contracted quadriceps muscle. Code 27570 describes manipulation of the knee under anesthesia, not quadricepsplasty.

How is this different from a knee capsular release?

Quadricepsplasty addresses restriction from contracted quadriceps muscle. A capsular procedure such as 27435 addresses the knee capsule.

What documentation supports 27430?

Document the quadriceps contracture, the resulting restriction in knee flexion, and the operative release or lengthening performed.

Can modifier 50 be used for bilateral quadricepsplasty?

Yes. CMS identifies this as a bilateral procedure; bilateral reporting with modifier 50 is paid at 150%.

How does the 90-day global period affect postoperative claims?

The day-before preoperative visit and 90 days of related postoperative care are included in the global period.

Can an assistant surgeon or co-surgeon be reported?

Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation.

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

Show the CMS file lines behind this rate
RVUs for 27430PPRRVU2026_Oct_nonQPP.csv, line 2,890 (RVU26D)

Open CMS sourceHow we calculate rates

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