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Billing code 20934: Bone allograftMedicare rate & RVUs

Reports placement of a complete intercalary bone allograft, typically reconstructing a long-bone segment removed during tumor surgery.

CMS RVU26DEffective Oct 1, 2026109 payment localities15 Medicare services in 2024

Medicare pays $648.65 for 20934 nationally in a facility.

Medicare rate · 20934

Bone allograft

Swap in your local Medicare rate.

Work RVUs
12.68
Total RVUs
19.42
Global days
ZZZ

National rate · 2026

$648.65

Facility setting, before claim adjustments.

See every locality for 20934 → · 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 20934 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 20934 covers

This add-on service represents reconstruction of a long-bone gap with a complete intercalary segment of donor bone. Orthopedic surgeons, often orthopedic oncologists, use this approach after removing a segment of bone, such as during surgery for a primary bone tumor. The graft spans the defect between the remaining bone ends and is secured as part of the reconstruction. The code includes obtaining the allograft; it is not for a graft harvested from the patient.

Report 20934 only with a primary procedure, such as the operation that removes the diseased bone and reconstructs the resulting defect. Documentation should identify the bone and defect, support use of a complete intercalary rather than partial or joint-surface graft, and describe placement and fixation. CMS treats payment for this add-on as part of the primary procedure's global period. It is not separately reported as a stand-alone service.

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 20934 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

20934 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$592.64
Alaska*Unavailable$828.69
ArizonaUnavailable$631.48
ArkansasUnavailable$585.88
AtlantaUnavailable$670.20
AustinUnavailable$647.04
BakersfieldUnavailable$634.39
Baltimore/Surr. CntysUnavailable$686.65
BeaumontUnavailable$630.10
BrazoriaUnavailable$630.98

20934 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
20934 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 20934 rate is calculated

Each of 20934’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 · 20934

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 12.68Practice expense 4.04Malpractice 2.70

19.4200 adjusted RVUs×$33.4009 conversion factor=$648.65

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

Payment rules and modifiers for 20934

The CMS indicators that decide how 20934 is paid alongside other services.

CMS payment indicators · 20934

Bone allograft

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
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.

What modifiers do to the payment

Modifier 80 · payment effect

With and without the modifier

20934 without 80 · national facility

$648.65

Bone allograft

20934-80 · Assistant: 16%

$103.78

A physician assistant at surgery is paid 16% of the surgeon’s fee schedule amount.

When to use modifier 80

20934 compared with similar codes

Compare codes

20934 vs 20933 vs 20932 vs 20931: national Medicare rates

Swap in your local Medicare rate.

  • 20934
    Bone allograft · 12.68 wRVU
    —
  • 20933
    Bone allograft · 11.64 wRVU
    —
  • 20932
    Joint allograft · 12.68 wRVU
    —
  • 20931
    Spinal bone graft · 1.76 wRVU
    —

How to choose

20933Bone allograft
20933 describes a partial hemicortical intercalary graft. Choose 20934 when the reconstruction uses a complete intercalary segment.
20932Joint allograft
20932 is for an allograft reconstruction that includes an articular surface and bone; 20934 is for a complete intercalary bone segment.
20931Spinal bone graft
20931 describes structural allograft use in spine surgery. 20934 is for complete intercalary allograft reconstruction of a long-bone defect.

Codes related to 20934

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

Codes related to 20934
CodeHow it relatesNational office range
Same family
20933Bone allograftPartial hemicortical intercalary allograft reconstruction, rather than a complete intercalary graft.No office rate
20932Joint allograftAllograft reconstruction involving an articular surface and bone.No office rate
20931Spinal bone graftStructural allograft used for spine surgery, rather than long-bone intercalary reconstruction.No office rate
20930Sp bone algrft morsel add-onMorselized allograft for spine surgery, not a complete structural long-bone segment.No office rate

20934 billing questions

When is 20934 preferable to 20933?

Use 20934 for a complete intercalary allograft reconstruction. Code 20933 describes a partial hemicortical intercalary graft.

Can 20934 be reported by itself?

No. CMS identifies it as an add-on code, so it must be reported with a primary procedure.

Does the code include obtaining the donor graft?

Yes. The service includes obtaining the allograft; it does not describe harvesting autologous bone from the patient.

What documentation supports the complete graft selection?

Document the bone and defect being reconstructed, the complete intercalary graft used, and how it was placed and secured.

How does CMS treat payment for this add-on?

Payment is within the primary procedure's global period, rather than as a stand-alone service.

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 20934PPRRVU2026_Oct_nonQPP.csv, line 1,815 (RVU26D)

Open CMS sourceHow we calculate rates

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