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Billing code 27179: Femoral osteotomyMedicare rate & RVUs

Corrective surgery at the femoral head or neck that reshapes proximal femoral alignment, reported when an osteotomy addresses a documented structural deformity.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $903.83 for 27179 nationally in a facility.

Medicare rate · 27179

Femoral osteotomy

Swap in your local Medicare rate.

Work RVUs
13.62
Total RVUs
27.06
Global days
090

National rate · 2026

$903.83

Facility setting, before claim adjustments.

See every locality for 27179 → · 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 27179 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 27179 covers

An orthopedic surgeon uses an osteotomy at the proximal femur to revise alignment or shape around the femoral head and neck. The operation is performed in a surgical setting for a structural deformity requiring correction at this location; the operative plan and technique distinguish it from hip replacement or repair of a fracture-related nonunion. Internal fixation may be used as part of the correction.

Report the code when the operative record supports revision of the femoral head or neck by osteotomy, rather than a different procedure on the hip or femur. Documentation should identify the deformity, the exact bone level treated, the corrective work, and fixation performed. The code has a 90-day global period, including the day-before preoperative visit and related postoperative care. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeons and team surgery are 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 27179 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

27179 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$817.68
Alaska*Unavailable$1,110.51
ArizonaUnavailable$878.93
ArkansasUnavailable$807.10
AtlantaUnavailable$930.36
AustinUnavailable$914.06
BakersfieldUnavailable$908.23
Baltimore/Surr. CntysUnavailable$959.82
BeaumontUnavailable$865.27
BrazoriaUnavailable$882.92

27179 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.

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
27179 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 27179 rate is calculated

Each of 27179’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 · 27179

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 13.62Practice expense 10.53Malpractice 2.91

27.0600 adjusted RVUs×$33.4009 conversion factor=$903.83

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

Payment rules and modifiers for 27179

27179 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 27179

Femoral osteotomy

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)0Not permitted.
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 · 27179

Femoral osteotomy

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

27179 without 50 · national facility

$903.83

Femoral osteotomy

27179-50 · Bilateral: 150%

$1,355.75

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

27179 compared with similar codes

Compare codes

27179 vs 27170 vs 27178 vs 27176 vs 27125: national Medicare rates

Swap in your local Medicare rate.

  • 27179
    Femoral osteotomy · 13.62 wRVU
    —
  • 27170
    Femur repair · 17.17 wRVU
    —
  • 27178
    SCFE surgery · 12.6 wRVU
    —
  • 27176
    Slipped epiphysis treatment · 12.6 wRVU
    —
  • 27125
    Hip replacement · 16.22 wRVU
    —

How to choose

27170Femur repair
Use 27170 for repair of femoral head or neck nonunion or malunion with grafting. Use 27179 when the documented work is corrective osteotomy of the head or neck.
27178SCFE surgery
Code 27178 is for a specified slipped-epiphysis treatment involving osteotomy and fixation. Select 27179 when the operative work is head-or-neck revision and is not that specified treatment.
27176Slipped epiphysis treatment
Code 27176 describes pinning a slipped femoral epiphysis in situ. It does not describe revision of the femoral head or neck by osteotomy.
27125Hip replacement
Code 27125 is partial hip replacement. It replaces part of the joint, unlike osteotomy to revise proximal femoral alignment.

Codes related to 27179

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

Codes related to 27179
CodeHow it relatesNational office range
Used instead
27170Femur repairGraft-based repair for femoral head or neck nonunion or malunion rather than corrective osteotomy.No office rate
27178SCFE surgeryA specified slipped-epiphysis treatment approach involving osteotomy and fixation.No office rate
27176Slipped epiphysis treatmentSlipped femoral epiphysis treated by pinning in situ rather than head-or-neck revision.No office rate
27175Slipped epiphysis treatmentSlipped femoral epiphysis treated by traction without reduction.No office rate
27161Femoral osteotomyA separate femoral-neck procedure; compare the documented work and intended correction.No office rate
27125Hip replacementPartial hip replacement replaces part of the joint instead of revising femoral alignment by osteotomy.No office rate

27179 billing questions

How is this different from treatment of a slipped femoral epiphysis?

Choose this code when the documented operation revises the femoral head or neck by osteotomy. Codes 27175–27178 describe specific treatment approaches for slipped femoral epiphysis, so the procedure performed and indication guide selection.

How does this differ from code 27170?

Code 27170 describes repair of femoral head or neck nonunion or malunion with grafting. This code is for corrective revision by osteotomy, not a graft-based repair.

What documentation supports reporting this code?

Document the structural problem, the femoral head or neck level addressed, the osteotomy and corrective objective, and any fixation. The operative report should make clear how the work differs from a replacement or graft repair.

Are related postoperative visits included?

Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

How is bilateral surgery reported?

When the procedure is performed bilaterally, report modifier 50; CMS pays the bilateral procedure at 150%.

Can an assistant or co-surgeon be reported?

An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted for this code.

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 27179PPRRVU2026_Oct_nonQPP.csv, line 2,778 (RVU26D)

Open CMS sourceHow we calculate rates

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