CPT code 20900: Bone graft harvest, minor or small graft2026 Medicare rate & RVUs in Florida
Reports harvesting a small autogenous bone graft from a donor site for use in a reconstructive or orthopedic procedure requiring bone grafting.
Medicare pays $393.70–$434.31 for 20900 in the office in Florida, from Rest of Florida to Miami, FL. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 20900 covers
This service covers obtaining a small piece of the patient’s own bone for grafting, such as a small dowel- or button-shaped piece. An orthopedic, spine, or reconstructive surgeon may harvest it during an operation in which another site needs bone graft material. The operative record should identify the donor site and describe the harvested graft and the procedure for which it is used.
Select this code when the harvested graft is minor or small; code 20902 represents a major or large harvest. Report the harvest with the procedure that uses the graft when separately supported by the operative work. The 0-day global period includes same-day preoperative and postoperative care. When multiple procedures occur in one session, Medicare pays the highest-valued procedure in full and reduces the others to 50%. Assistant-at-surgery payment may be allowed; co-surgeon payment requires supporting documentation, and team surgery is not permitted. Modifier 50 is inappropriate for this code.
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 20900 pays more and less in Florida
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$393.70 to $434.31
| Payment locality | Office | Facility |
|---|---|---|
| Fort Lauderdale, FL | $414.79 | $174.22 |
| Miami, FL | $434.31 | $187.09 |
| Rest of Florida | $393.70 | $166.67 |
How the 20900 rate is calculated
Each of 20900’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 · 20900
RVUs × geographic indexes × conversion factor
Work2.93
2.93 RVUs× 1.000 GPCI
Practice expense8.51
8.51 RVUs× 1.000 GPCI
Malpractice0.48
0.48 RVUs× 1.000 GPCI
Adjusted RVUs
11.9200
Conversion factor
$33.4009
Medicare rate
$398.14
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 20900
The CMS indicators that decide how 20900 is paid alongside other services.
CMS payment indicators · 20900
Bone graft harvest, minor or small graft
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 000 | Same-day global: pre- and post-op care on the day of the procedure is included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
20900 without 51 · national office
$398.14
Bone graft harvest, minor or small graft
20900-51 · Second procedure: 50%
$199.07
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
20900 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 20902Bone graft harvestMajor or large graft
- Both represent harvesting the patient’s bone for a graft. Choose 20900 for a minor or small harvest and 20902 for a major or large harvest.
- 20936Spinal autograftLocal, same incision
- 20936 describes local spinal autograft obtained through the operative incision. Use 20900 for a separately documented small bone harvest rather than local bone collected at the recipient site.
- 20937Spinal bone graftMorselized, separate incision
- 20937 represents a separately harvested morselized autograft for spinal surgery. Choose 20900 for a minor or small harvest that is not being reported under that spinal graft code.
- 20938Spinal bone graftStructural autograft, separate incision
- 20938 represents a separately harvested structural autograft for spinal surgery. It differs from 20900, which identifies a minor or small bone harvest.
20900 billing questions
How is 20900 distinguished from 20902?
Use 20900 for a minor or small bone harvest and 20902 for a major or large harvest. The operative documentation should support the extent of the harvest.
Is 20900 an add-on code?
No add-on status is listed for 20900. Report it for the separately performed small bone harvest when the operative record supports that work.
Can 20900 be reported with a spinal graft code?
A small separate-site harvest is distinct from local spinal autograft represented by 20936. Codes 20937 and 20938 describe other spinal autograft approaches, so select based on the documented graft and harvest method.
Should modifier 50 be appended for bilateral harvesting?
No. Modifier 50 is inappropriate for 20900 under the CMS bilateral adjustment rule.
How does the 0-day global period affect same-day care?
Same-day preoperative and postoperative care is included in the procedure. When other procedures are performed in the same session, standard multiple-procedure payment reduction applies.
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
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