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Billing code 27475: Growth arrestMedicare rate & RVUs

Reports epiphysiodesis of the distal femur to arrest growth, typically to manage a predicted leg-length discrepancy in a skeletally immature patient.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $627.27 for 27475 nationally in a facility.

Medicare rate · 27475

Growth arrest

Swap in your local Medicare rate.

Work RVUs
8.71
Total RVUs
18.78
Global days
090

National rate · 2026

$627.27

Facility setting, before claim adjustments.

See every locality for 27475 → · 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 27475 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 27475 covers

This procedure arrests growth at the distal femoral physis, the growth plate near the knee. Pediatric orthopedic surgeons commonly perform it for a skeletally immature patient when growth prediction indicates that one leg is likely to become longer than the other. The treatment plan targets the physis of the longer limb so continued growth of the opposite leg can reduce the discrepancy. The code is specific to the distal femur; growth arrest at another site is represented by a different code.

Report the procedure for treatment of the distal femoral growth plate, supported by documentation of the treated site, laterality, indication, and growth-management plan. This major surgery has a 90-day global period, including the day-before preoperative visit and related postoperative care during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Bilateral treatment with modifier 50 is paid at 150%. Assistant-at-surgery payment is restricted; co-surgeons require 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 27475 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

27475 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$566.13
Alaska*Unavailable$762.83
ArizonaUnavailable$609.86
ArkansasUnavailable$558.59
AtlantaUnavailable$644.95
AustinUnavailable$636.73
BakersfieldUnavailable$634.99
Baltimore/Surr. CntysUnavailable$666.61
BeaumontUnavailable$598.17
BrazoriaUnavailable$613.53

27475 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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Local rates. Clear comparisons.

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View every state and territory as a table
27475 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 27475 rate is calculated

Each of 27475’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 · 27475

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 8.71Practice expense 8.22Malpractice 1.85

18.7800 adjusted RVUs×$33.4009 conversion factor=$627.27

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

Payment rules and modifiers for 27475

27475 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 27475

Growth arrest

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)1Not paid (statutory restriction).
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 · 27475

Growth arrest

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

27475 without 50 · national facility

$627.27

Growth arrest

27475-50 · Bilateral: 150%

$940.91

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

27475 compared with similar codes

Compare codes

27475 vs 27477 vs 27479 vs 27485: national Medicare rates

Swap in your local Medicare rate.

  • 27475
    Growth arrest · 8.71 wRVU
    —
  • 27477
    Growth arrest surgery · 9.89 wRVU
    —
  • 27479
    Growth arrest · 12.83 wRVU
    —
  • 27485
    Guided growth · 8.9 wRVU
    —

How to choose

27477Growth arrest surgery
Use 27475 for the distal femoral physis; 27477 identifies growth arrest at the proximal tibia and fibula.
27479Growth arrest
Use 27475 for the distal femur; 27479 identifies the distal tibia and fibula.
27485Guided growth
This code addresses distal femoral growth arrest for growth management. Code 27485 describes hemiepiphysiodesis used to correct an angular deformity.

Codes related to 27475

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

Codes related to 27475
CodeHow it relatesNational office range
Same family
27477Growth arrest surgeryGrowth arrest by epiphysiodesis at the proximal tibia and fibula.No office rate
27479Growth arrestGrowth arrest by epiphysiodesis at the distal tibia and fibula.No office rate
Used instead
27485Guided growthHemiepiphysiodesis addresses angular deformity rather than arresting the distal femur for growth management.No office rate

27475 billing questions

How is this code distinguished from other growth-arrest codes?

This code identifies epiphysiodesis at the distal femur. Select the related code for the specific proximal or distal tibial site when that physis is treated instead.

What documentation supports reporting this procedure?

Document the distal femoral physis treated, side, clinical indication, and the growth-management plan. The record should support why arresting growth at that site is part of the patient's treatment.

Are related postoperative visits separately included?

The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.

How is bilateral treatment paid?

When the procedure is performed bilaterally and reported with modifier 50, CMS pays it at 150%.

Can an assistant or co-surgeon be reported?

Assistant-at-surgery payment is barred by statutory restriction. Co-surgeons are paid only when supporting documentation is provided.

What happens when another procedure is performed in the same session?

The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction.

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 27475PPRRVU2026_Oct_nonQPP.csv, line 2,910 (RVU26D)

Open CMS sourceHow we calculate rates

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