CPT code 20956: Bone graft, iliac, microvascular2026 Medicare rate & RVUs in Utah
Reports transfer of vascularized bone harvested from the iliac crest with microvascular connection, commonly for reconstruction of a substantial skeletal defect.
In Utah, Medicare pays $2,282.53 for 20956 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 20956 nationwide
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 11 sections
What 20956 covers
The surgeon harvests bone from the iliac crest with its blood supply and connects the graft’s vessels to recipient vessels using microsurgical technique. This vascularized bone transfer can rebuild a defect where living bone is needed, such as mandibular reconstruction after tumor removal or reconstruction of a major bone defect. Plastic, oral and maxillofacial, or orthopedic surgeons may perform the procedure in an operating room, often as part of a larger reconstruction.
Select this code when the graft is iliac bone and the procedure includes microvascular anastomosis; the donor bone site and vascular technique distinguish it from other graft codes. The operative report should identify the iliac donor site, graft transfer, vascular anastomosis, and reconstructive purpose. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment may be available; co-surgeon payment requires 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.
How Utah compares for 20956
Across 109 of 109 payment localities, the facility rate for 20956 runs from $2,113.82 in Arkansas to $2,944.59 in Alaska. Utah pays $2,282.53. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Utah · this page$2,282.53
- Los Angeles, CA · California$2,447.31+$164.78
- Washington, DC area · District of Columbia$2,589.78+$307.25
- Miami, FL · Florida$2,823.45+$540.92
- Chicago, IL · Illinois$2,739.58+$457.05
- Manhattan, NY · New York$2,727.10+$444.57
- Alaska · Alaska$2,944.59+$662.06
Other areas in Utah first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $2,140.08 |
| ArkansasArkansas | — | $2,113.82 |
| ArizonaArizona | — | $2,291.60 |
| Bakersfield, CACalifornia | — | $2,338.73 |
| Chico, CACalifornia | — | $2,315.13 |
| El Centro, CACalifornia | — | $2,316.56 |
| Fresno, CACalifornia | — | $2,315.13 |
| Hanford, CACalifornia | — | $2,315.13 |
| Madera, CACalifornia | — | $2,315.13 |
| Merced, CACalifornia | — | $2,315.13 |
| Modesto, CACalifornia | — | $2,315.13 |
| Napa, CACalifornia | — | $2,530.36 |
| Oxnard, CACalifornia | — | $2,417.40 |
| Redding, CACalifornia | — | $2,315.13 |
| Rest of CaliforniaCalifornia | — | $2,315.13 |
| Riverside, CACalifornia | — | $2,407.31 |
| Sacramento, CACalifornia | — | $2,389.37 |
| Salinas, CACalifornia | — | $2,379.75 |
| San Diego, CACalifornia | — | $2,407.06 |
| Marin County, CACalifornia | — | $2,626.19 |
| San Francisco, CACalifornia | — | $2,616.45 |
| San Benito County, CACalifornia | — | $2,691.66 |
| Santa Clara County, CACalifornia | — | $2,651.83 |
| San Luis Obispo, CACalifornia | — | $2,346.42 |
| Santa Cruz, CACalifornia | — | $2,407.10 |
| Santa Maria, CACalifornia | — | $2,380.82 |
| Santa Rosa, CACalifornia | — | $2,428.63 |
| Stockton, CACalifornia | — | $2,315.13 |
| Vallejo, CACalifornia | — | $2,516.32 |
| Visalia, CACalifornia | — | $2,315.13 |
| Yuba City, CACalifornia | — | $2,315.13 |
| ColoradoColorado | — | $2,355.34 |
| ConnecticutConnecticut | — | $2,498.48 |
| DelawareDelaware | — | $2,324.46 |
| Fort Lauderdale, FLFlorida | — | $2,596.45 |
| Rest of FloridaFlorida | — | $2,467.56 |
| Atlanta, GAGeorgia | — | $2,428.70 |
| Rest of GeorgiaGeorgia | — | $2,331.85 |
| Hawaii, Guam, HIHawaii | — | $2,334.49 |
| IowaIowa | — | $2,120.76 |
| IdahoIdaho | — | $2,146.18 |
| East St. Louis, ILIllinois | — | $2,587.80 |
| Rest of IllinoisIllinois | — | $2,453.46 |
| Suburban Chicago, ILIllinois | — | $2,605.71 |
| IndianaIndiana | — | $2,155.00 |
| KansasKansas | — | $2,143.42 |
| KentuckyKentucky | — | $2,250.29 |
| New Orleans, LALouisiana | — | $2,351.47 |
| Rest of LouisianaLouisiana | — | $2,259.70 |
| Metropolitan Boston, MAMassachusetts | — | $2,520.08 |
| Rest of MassachusettsMassachusetts | — | $2,357.29 |
| Baltimore area, MDMaryland | — | $2,497.94 |
| Rest of MarylandMaryland | — | $2,354.08 |
| Rest of MaineMaine | — | $2,188.88 |
| Southern Maine, MEMaine | — | $2,243.13 |
| Detroit, MIMichigan | — | $2,526.55 |
| Rest of MichiganMichigan | — | $2,329.08 |
| MinnesotaMinnesota | — | $2,174.79 |
| Metropolitan Kansas City, MOMissouri | — | $2,304.44 |
| Metropolitan St. Louis, MOMissouri | — | $2,321.07 |
| Rest of MissouriMissouri | — | $2,247.54 |
| MississippiMississippi | — | $2,179.47 |
| MontanaMontana | — | $2,354.86 |
| North CarolinaNorth Carolina | — | $2,203.21 |
| North DakotaNorth Dakota | — | $2,185.20 |
| NebraskaNebraska | — | $2,121.14 |
| New HampshireNew Hampshire | — | $2,349.45 |
| Northern New JerseyNew Jersey | — | $2,575.85 |
| Rest of New JerseyNew Jersey | — | $2,503.83 |
| New MexicoNew Mexico | — | $2,352.63 |
| NevadaNevada | — | $2,308.30 |
| NYC suburbs and Long Island, NYNew York | — | $2,824.41 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $2,545.10 |
| Queens, NYNew York | — | $2,700.39 |
| Rest of New YorkNew York | — | $2,233.93 |
| OhioOhio | — | $2,294.41 |
| OklahomaOklahoma | — | $2,213.65 |
| Portland, OROregon | — | $2,384.31 |
| Rest of OregonOregon | — | $2,267.41 |
| Metropolitan Philadelphia, PAPennsylvania | — | $2,464.72 |
| Rest of PennsylvaniaPennsylvania | — | $2,279.99 |
| Puerto RicoPuerto Rico | — | $2,359.14 |
| Rhode IslandRhode Island | — | $2,373.98 |
| South CarolinaSouth Carolina | — | $2,257.13 |
| South DakotaSouth Dakota | — | $2,165.14 |
| TennesseeTennessee | — | $2,156.51 |
| Austin, TXTexas | — | $2,367.66 |
| Beaumont, TXTexas | — | $2,269.58 |
| Brazoria, TXTexas | — | $2,296.56 |
| Dallas, TXTexas | — | $2,323.90 |
| Fort Worth, TXTexas | — | $2,320.34 |
| Galveston, TXTexas | — | $2,311.77 |
| Houston, TXTexas | — | $2,468.82 |
| Rest of TexasTexas | — | $2,290.52 |
| VirginiaVirginia | — | $2,258.80 |
| Virgin Islands, VIUnited States Virgin Islands | — | $2,359.14 |
| VermontVermont | — | $2,206.58 |
| Rest of WashingtonWashington | — | $2,342.95 |
| King County, WAWashington | — | $2,535.25 |
| WisconsinWisconsin | — | $2,126.55 |
| West VirginiaWest Virginia | — | $2,383.60 |
| WyomingWyoming | — | $2,280.92 |
20956 rates by state
Office rate range in each state. Select a state to see its payment localities.
Explore a state
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
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
How the 20956 rate is calculated
Each of 20956’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 · 20956
RVUs × geographic indexes × conversion factor
Work40.15
40.15 RVUs× 1.000 GPCI
Practice expense21.79
21.79 RVUs× 1.000 GPCI
Malpractice8.58
8.58 RVUs× 1.000 GPCI
Adjusted RVUs
70.5200
Conversion factor
$33.4009
Medicare rate
$2,355.43
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Utah inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
1,822
- Code
- 20956
- Physician work
- 40.15
- Practice expense
- 21.79
- Malpractice
- 8.58
GPCI2026.csv
104
- Locality
- Utah
- Physician work
- 1.000
- Practice expense
- 0.940
- Malpractice
- 0.898
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 40.15 | × 1.000 | 40.1500 |
| Practice expense | 21.79 | × 0.940 | 20.4826 |
| Malpractice | 8.58 | × 0.898 | 7.7048 |
| Total RVUs | 68.3374 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Utah$2282.53
Facility: (40.15 × 1 + 21.79 × 0.94 + 8.58 × 0.898) × $33.4009 = $2282.53
Payment rules and modifiers for 20956
20956 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 20956
Bone graft, iliac, microvascular
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are 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. |
| Split (54/55/56) | 0.10/0.69/0.21 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 20956
Bone graft, iliac, microvascular
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.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
20956 without 51 · national facility
$2,355.43
Bone graft, iliac, microvascular
20956-51 · Second procedure: 50%
$1,177.72
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%).
How 20956 has changed in Utah
20956 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $2,282.53 | RVU26D |
| 2026-07-01 | Not available in this setting | $2,282.53 | RVU26C |
| 2026-04-01 | Not available in this setting | $2,282.53 | RVU26B |
| 2026-01-01 | Not available in this setting | $2,282.53 | RVU26A |
| 2025-10-01 | Not available in this setting | $2,490.40 | RVU25D |
| 2025-07-01 | Not available in this setting | $2,490.40 | RVU25C |
| 2025-04-01 | Not available in this setting | $2,490.40 | RVU25B |
| 2025-01-01 | Not available in this setting | $2,490.40 | RVU25A |
| 2024-10-01 | Not available in this setting | $2,545.45 | RVU24D |
| 2024-07-01 | Not available in this setting | $2,545.45 | RVU24C |
| 2024-04-01 | Not available in this setting | $2,545.45 | RVU24B |
| 2024-03-09 | Not available in this setting | $2,545.45 | RVU24AR |
| 2024-01-01 | Not available in this setting | $2,503.90 | RVU24A |
| 2023-10-01 | Not available in this setting | $2,553.50 | RVU23D |
| 2023-07-01 | Not available in this setting | $2,553.50 | RVU23C |
| 2023-04-01 | Not available in this setting | $2,553.50 | RVU23B |
| 2023-01-01 | Not available in this setting | $2,553.50 | RVU23A |
| 2022-10-01 | Not available in this setting | $2,561.73 | RVU22D |
| 2022-07-01 | Not available in this setting | $2,561.73 | RVU22C |
| 2022-04-01 | Not available in this setting | $2,561.73 | RVU22B |
| 2022-01-01 | Not available in this setting | $2,561.73 | RVU22A |
| 2021-10-01 | Not available in this setting | $2,574.52 | RVU21D |
| 2021-07-01 | Not available in this setting | $2,574.52 | RVU21C |
| 2021-04-01 | Not available in this setting | $2,574.52 | RVU21B |
| 2021-01-01 | Not available in this setting | $2,574.52 | RVU21A |
| 2020-10-01 | Not available in this setting | $2,680.74 | RVU20D |
| 2020-07-01 | Not available in this setting | $2,680.74 | RVU20C |
| 2020-04-01 | Not available in this setting | $2,680.74 | RVU20B |
| 2020-01-01 | Not available in this setting | $2,680.74 | RVU20A |
| 2019-10-01 | Not available in this setting | $2,741.73 | RVU19D |
| 2019-07-01 | Not available in this setting | $2,741.73 | RVU19C |
| 2019-04-01 | Not available in this setting | $2,719.48 | RVU19B |
| 2019-01-01 | Not available in this setting | $2,719.48 | RVU19A |
| 2018-10-01 | Not available in this setting | $2,736.87 | RVU18D |
| 2018-07-01 | Not available in this setting | $2,736.87 | RVU18C |
| 2018-04-01 | Not available in this setting | $2,736.87 | RVU18B |
| 2018-01-01 | Not available in this setting | $2,736.87 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $2,731.38 | RVU17D |
| 2017-07-01 | Not available in this setting | $2,731.38 | RVU17C |
| 2017-04-01 | Not available in this setting | $2,731.38 | RVU17B |
| 2017-01-01 | Not available in this setting | $2,731.38 | RVU17A |
| 2016-10-01 | Not available in this setting | $2,722.65 | RVU16D |
| 2016-07-01 | Not available in this setting | $2,722.65 | RVU16C |
| 2016-04-01 | Not available in this setting | $2,722.65 | RVU16B |
| 2016-01-01 | Not available in this setting | $2,722.65 | RVU16A |
| 2015-10-01 | Not available in this setting | $2,734.46 | RVU15D |
| 2015-07-01 | Not available in this setting | $2,734.46 | RVU15C |
| 2015-04-01 | Not available in this setting | $2,720.86 | RVU15B |
| 2015-01-01 | Not available in this setting | $2,720.86 | RVU15A |
| 2014-10-01 | Not available in this setting | $2,675.97 | RVU14D |
| 2014-07-01 | Not available in this setting | $2,675.97 | RVU14C |
| 2014-04-01 | Not available in this setting | $2,675.97 | RVU14B |
| 2014-01-01 | Not available in this setting | $2,675.97 | RVU14A |
| 2013-10-01 | Not available in this setting | $2,607.18 | RVU13D |
| 2013-07-01 | Not available in this setting | $2,607.18 | RVU13C |
| 2013-04-01 | Not available in this setting | $2,607.18 | RVU13B |
| 2013-01-01 | Not available in this setting | $2,607.18 | RVU13AR |
Where the Utah rate applies
Utah is a Medicare payment area, not a city. Our Census mapping connects it to 334 cities and communities in Utah. Some span more than one payment area; confirm with the service ZIP.
- Alpine
- Alta
- Altamont
- Alton
- Amalga
- American Fork
- Aneth
- Annabella
20956 billing questions
How is this distinguished from other microvascular bone-graft codes?
Choose this code for a vascularized iliac bone graft. The corresponding codes for fibula, metatarsal, or another bone donor site are different members of the microvascular bone-graft family.
Is harvesting the iliac bone part of the service?
The service covers the iliac bone graft harvest and its microvascular transfer. The operative report should establish the donor site and vascular connection.
Should modifier 50 be used for grafts from both iliac crests?
No. CMS identifies bilateral adjustment as inappropriate for this code; do not append modifier 50.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
How does CMS handle this with other procedures in the same session?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the other procedures are paid at 50%.
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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