20936
No office rateSp bone agrft local add-on
Use 20936 for local autograft obtained at the operative site. Use 20937 for morselized autograft taken through a separate skin or fascial incision.
On this page
CMS RVU26D · Effective 2026-10-01
20937 Spinal bone graft Medicare reimbursement rates in Indiana
Reports morselized bone harvested from the patient through a separate incision and placed to support fusion during a primary spinal procedure. Compare 20937 office and facility rates across CMS payment localities in Indiana.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 20937 in Indiana?
Indiana has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$131.54
1 of 1 localities have a supported rate.
Payment area: Indiana
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Spine surgery
About 20937: Morselized spinal autograft, separate harvest
Reports morselized bone harvested from the patient through a separate incision and placed to support fusion during a primary spinal procedure.
During spinal fusion, the surgeon harvests the patient’s own bone through a separate skin or fascial incision, prepares it as small fragments, and places it at the fusion site to support bone healing. The iliac crest is a common harvest site. Orthopedic spine surgeons and neurosurgeons perform this work in the operating room as part of cervical, thoracic, or lumbar arthrodesis.
Report this add-on only with an eligible primary spinal procedure. It represents obtaining and preparing the patient’s morselized bone, not a standalone service. Documentation should identify the autologous graft, its morselized form, the separate harvest incision and site, and placement at the fusion site. CMS classifies 20937 as an add-on code: it must be billed with a primary procedure, and its payment falls within that procedure’s global period.
CMS billing rules for 20937
- Global period
- Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
Where the value comes from
- Work RVU2.72 · 62%
- Practice expense (office) RVU0.90 · 20%
- Malpractice RVU0.79 · 18%
7.1K
Medicare services in 2024 · #1655 by national volume
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.
20937 compared with similar codes
Office rates for Indiana, from the same CMS release.
No office rate
Both describe spinal autograft harvested through a separate incision; 20937 is for morselized graft, while 20938 is for structural graft.
20930
No office rateSp bone algrft morsel add-on
20930 describes morselized allograft from a donor source. 20937 describes morselized bone harvested from the patient.
Compare 20937 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Indiana →
Office / nonfacility
Unavailable
Facility
$131.54
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 20937 in Indiana.
PPRRVU2026_Oct_nonQPP.csv
1,817
- Code
- 20937
- Physician work
- 2.72
- Practice expense
- 0.90
- Malpractice
- 0.79
GPCI2026.csv
52
- Locality
- Indiana
- Physician work
- 1.000
- Practice expense
- 0.927
- Malpractice
- 0.486
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 2.72 | × 1.000 | 2.7200 |
| Practice expense | 0.90 | × 0.927 | 0.8343 |
| Malpractice | 0.79 | × 0.486 | 0.3839 |
| Total RVUs | 3.9382 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Indiana$131.54
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 2.72 | 1 |
| Practice expense | 0.9 | 0.927 |
| Malpractice | 0.79 | 0.486 |
(2.72 × 1 + 0.9 × 0.927 + 0.79 × 0.486) × $33.4009 = $131.54
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
20937 billing questions
How does 20937 differ from 20936?
20937 describes morselized autograft harvested through a separate skin or fascial incision. 20936 is for local autograft obtained at the operative site.
When would 20938 be used instead?
20938 is for structural autograft harvested through a separate incision. Choose 20937 when the harvested autograft is morselized rather than structural.
Can 20937 be billed by itself?
No. It is an add-on code and must be reported with an eligible primary spinal procedure.
Is the bone harvest included in 20937?
Yes. The code includes obtaining the patient’s bone through a separate incision and preparing it as morselized graft.
What documentation supports reporting 20937?
The operative report should establish that the graft came from the patient, was harvested through a separate incision, was morselized, and was placed at the fusion site.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
1,81420933,,Hemicrt intrclry algrft prtl,A,,11.64,3.71,NA,3.71,,2.48,17.83,17.83,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,81520934,,Intercalary algrft compl,A,,12.68,4.04,NA,4.04,,2.70,19.42,19.42,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,81620936,,Sp bone agrft local add-on,B,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
1,81720937,,Sp bone agrft morsel add-on,A,,2.72,0.90,NA,0.90,,0.79,4.41,4.41,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,81820938,,Sp bone agrft struct add-on,A,,2.94,0.99,NA,0.99,,0.96,4.89,4.89,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,81920939,,Bone marrow aspir bone grfg,A,,1.13,0.37,NA,0.37,,0.34,1.84,1.84,0,ZZZ,0.00,0.00,0.00,0,1,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,82020950,,Mntr intrstitial fluid press,A,,1.23,6.88,,1.05,,0.22,8.33,2.50,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4906102,IL,12,EAST ST. LOUIS,1.000,0.920,2.014
5006102,IL,15,SUBURBAN CHICAGO,1.007,1.027,1.772
5106102,IL,99,REST OF ILLINOIS,1.000,0.913,1.563
5208102,IN,00,INDIANA,1.000,0.927,0.486
5305102,IA,00,IOWA,1.000,0.915,0.397
5405202,KS,00,KANSAS,1.000,0.904,0.504
5515102,KY,00,KENTUCKY,1.000,0.889,0.915