CPT code 40845: Mouth reconstruction, with bone graft2026 Medicare rate & RVUs in Riverside, CA
Reports floor-of-mouth reconstruction using a bone graft when the documented procedure and clinical circumstances support this reconstructive service.
In Riverside, CA, Medicare pays $1,547.27 for 40845 in the office and $1,078.33 when it’s performed in a hospital or facility.
Check a contract rate as a % of Medicare · 40845 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 40845 covers
This service reconstructs the floor of the mouth using a bone graft. Oral and maxillofacial surgeons and other surgeons qualified in oral reconstruction typically perform it in a hospital operating room or outpatient surgical setting. The operative report should identify the site, reconstructive work, and bone graft used, rather than describing only lesion removal or closure of an acute wound.
Select 40845 when the reconstruction uses a bone graft; codes 40840–40844 distinguish other approaches by the extent of reconstruction and whether a skin graft is used. Medicare coverage is restricted to specific circumstances, so documentation should support the indication and work performed. The 90-day global period includes the day-before preoperative visit and related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others are subject to the standard 50% reduction. Modifier 50 is inappropriate. An assistant at surgery requires documented medical necessity; 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.
How Riverside, CA compares for 40845
Across 109 of 109 payment localities, the office rate for 40845 runs from $1,326.05 in Arkansas to $1,837.24 in San Benito County, CA. Riverside, CA pays $1,547.27. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Riverside, CA · this page$1,547.27
- Bakersfield, CA · California$1,525.49−$21.78
- Chico, CA · California$1,517.52−$29.75
- El Centro, CA · California$1,517.98−$29.29
- Fresno, CA · California$1,517.52−$29.75
- Hanford, CA · California$1,517.52−$29.75
- Los Angeles, CA · California$1,610.06+$62.79
Other areas in California first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| Madera, CACalifornia | $1,517.52 | $1,048.58 |
| Merced, CACalifornia | $1,517.52 | $1,048.58 |
| Modesto, CACalifornia | $1,517.52 | $1,048.58 |
| Napa, CACalifornia | $1,711.46 | $1,147.54 |
| Oxnard, CACalifornia | $1,597.34 | $1,091.60 |
| Redding, CACalifornia | $1,517.52 | $1,048.58 |
| Rest of CaliforniaCalifornia | $1,517.52 | $1,048.58 |
| Sacramento, CACalifornia | $1,580.06 | $1,082.45 |
| Salinas, CACalifornia | $1,573.89 | $1,077.99 |
| San Diego, CACalifornia | $1,601.72 | $1,090.00 |
| Marin County, CACalifornia | $1,796.56 | $1,193.27 |
| San Francisco, CACalifornia | $1,793.44 | $1,190.15 |
| San Benito County, CACalifornia | $1,837.24 | $1,220.25 |
| Santa Clara County, CACalifornia | $1,824.47 | $1,207.49 |
| San Luis Obispo, CACalifornia | $1,549.97 | $1,062.63 |
| Santa Cruz, CACalifornia | $1,609.83 | $1,089.98 |
| Santa Maria, CACalifornia | $1,577.28 | $1,078.39 |
| Santa Rosa, CACalifornia | $1,625.32 | $1,099.90 |
| Stockton, CACalifornia | $1,517.52 | $1,048.58 |
| Vallejo, CACalifornia | $1,706.96 | $1,143.04 |
| Visalia, CACalifornia | $1,517.52 | $1,048.58 |
| Yuba City, CACalifornia | $1,517.52 | $1,048.58 |
| Washington, DC areaDistrict of Columbia | $1,655.73 | $1,151.70 |
| Miami, FLFlorida | $1,648.37 | $1,202.96 |
| Chicago, ILIllinois | $1,604.12 | $1,174.12 |
| Manhattan, NYNew York | $1,693.41 | $1,196.23 |
| AlaskaAlaska | $1,800.09 | $1,344.42 |
| AlabamaAlabama | $1,342.81 | $968.43 |
| ArkansasArkansas | $1,326.05 | $958.51 |
| ArizonaArizona | $1,440.37 | $1,025.77 |
| ColoradoColorado | $1,512.73 | $1,057.48 |
| ConnecticutConnecticut | $1,566.99 | $1,106.18 |
| DelawareDelaware | $1,461.81 | $1,039.08 |
| Fort Lauderdale, FLFlorida | $1,561.01 | $1,127.59 |
| Rest of FloridaFlorida | $1,489.99 | $1,080.95 |
| Atlanta, GAGeorgia | $1,509.41 | $1,074.70 |
| Rest of GeorgiaGeorgia | $1,413.13 | $1,031.48 |
| Hawaii, Guam, HIHawaii | $1,541.69 | $1,055.20 |
| IowaIowa | $1,357.47 | $965.97 |
| IdahoIdaho | $1,368.22 | $974.58 |
| East St. Louis, ILIllinois | $1,509.76 | $1,116.13 |
| Rest of IllinoisIllinois | $1,463.06 | $1,072.42 |
| Suburban Chicago, ILIllinois | $1,572.68 | $1,133.27 |
| IndianaIndiana | $1,374.70 | $978.06 |
| KansasKansas | $1,358.99 | $972.20 |
| KentuckyKentucky | $1,385.43 | $1,005.06 |
| New Orleans, LALouisiana | $1,444.96 | $1,042.34 |
| Rest of LouisianaLouisiana | $1,386.36 | $1,007.70 |
| Metropolitan Boston, MAMassachusetts | $1,639.12 | $1,128.25 |
| Rest of MassachusettsMassachusetts | $1,508.42 | $1,057.88 |
| Baltimore area, MDMaryland | $1,563.93 | $1,104.83 |
| Rest of MarylandMaryland | $1,484.82 | $1,051.82 |
| Rest of MaineMaine | $1,381.91 | $988.27 |
| Southern Maine, MEMaine | $1,436.30 | $1,012.29 |
| Detroit, MIMichigan | $1,513.59 | $1,100.70 |
| Rest of MichiganMichigan | $1,423.19 | $1,032.55 |
| MinnesotaMinnesota | $1,434.20 | $993.93 |
| Metropolitan Kansas City, MOMissouri | $1,428.85 | $1,027.08 |
| Metropolitan St. Louis, MOMissouri | $1,440.95 | $1,033.63 |
| Rest of MissouriMissouri | $1,370.47 | $1,001.65 |
| MississippiMississippi | $1,348.14 | $979.74 |
| MontanaMontana | $1,476.80 | $1,048.94 |
| North CarolinaNorth Carolina | $1,393.28 | $994.08 |
| North DakotaNorth Dakota | $1,422.43 | $994.56 |
| NebraskaNebraska | $1,361.76 | $966.84 |
| New HampshireNew Hampshire | $1,496.44 | $1,051.03 |
| Northern New JerseyNew Jersey | $1,643.69 | $1,147.36 |
| Rest of New JerseyNew Jersey | $1,580.54 | $1,113.31 |
| New MexicoNew Mexico | $1,432.82 | $1,040.47 |
| NevadaNevada | $1,462.40 | $1,034.11 |
| NYC suburbs and Long Island, NYNew York | $1,738.67 | $1,229.94 |
| Poughkeepsie and northern NYC suburbs, NYNew York | $1,596.33 | $1,127.82 |
| Queens, NYNew York | $1,695.27 | $1,189.53 |
| Rest of New YorkNew York | $1,411.98 | $1,005.51 |
| OhioOhio | $1,412.08 | $1,021.44 |
| OklahomaOklahoma | $1,375.77 | $993.69 |
| Portland, OROregon | $1,547.32 | $1,071.96 |
| Rest of OregonOregon | $1,446.69 | $1,020.54 |
| Metropolitan Philadelphia, PAPennsylvania | $1,537.00 | $1,091.59 |
| Rest of PennsylvaniaPennsylvania | $1,410.06 | $1,017.28 |
| Puerto RicoPuerto Rico | $1,483.91 | $1,051.34 |
| Rhode IslandRhode Island | $1,503.95 | $1,061.96 |
| South CarolinaSouth Carolina | $1,405.87 | $1,010.52 |
| South DakotaSouth Dakota | $1,416.00 | $988.13 |
| TennesseeTennessee | $1,365.80 | $976.87 |
| Austin, TXTexas | $1,511.54 | $1,058.86 |
| Beaumont, TXTexas | $1,402.56 | $1,013.20 |
| Brazoria, TXTexas | $1,455.03 | $1,031.02 |
| Dallas, TXTexas | $1,466.60 | $1,040.45 |
| Fort Worth, TXTexas | $1,460.25 | $1,038.38 |
| Galveston, TXTexas | $1,460.95 | $1,036.08 |
| Houston, TXTexas | $1,511.29 | $1,086.42 |
| Rest of TexasTexas | $1,429.60 | $1,023.55 |
| UtahUtah | $1,422.35 | $1,020.15 |
| VirginiaVirginia | $1,437.16 | $1,016.56 |
| Virgin Islands, VIUnited States Virgin Islands | $1,483.91 | $1,051.34 |
| VermontVermont | $1,424.07 | $1,000.48 |
| Rest of WashingtonWashington | $1,503.22 | $1,052.68 |
| King County, WAWashington | $1,662.99 | $1,138.00 |
| WisconsinWisconsin | $1,381.74 | $971.84 |
| West VirginiaWest Virginia | $1,417.73 | $1,045.92 |
| WyomingWyoming | $1,453.11 | $1,025.24 |
40845 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.
$1,326.05
$1,800.09
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $1,800.09 | 1 |
| AL | $1,342.81 | 1 |
| AR | $1,326.05 | 1 |
| AZ | $1,440.37 | 1 |
| CA | $1,517.52–$1,837.24 | 29 |
| CO | $1,512.73 | 1 |
| CT | $1,566.99 | 1 |
| DC | $1,655.73 | 1 |
| DE | $1,461.81 | 1 |
| FL | $1,489.99–$1,648.37 | 3 |
| GA | $1,413.13–$1,509.41 | 2 |
| GU | $1,541.69 | 1 |
| HI | $1,541.69 | 1 |
| IA | $1,357.47 | 1 |
| ID | $1,368.22 | 1 |
| IL | $1,463.06–$1,604.12 | 4 |
| IN | $1,374.70 | 1 |
| KS | $1,358.99 | 1 |
| KY | $1,385.43 | 1 |
| LA | $1,386.36–$1,444.96 | 2 |
| MA | $1,508.42–$1,639.12 | 2 |
| MD | $1,484.82–$1,655.73 | 3 |
| ME | $1,381.91–$1,436.30 | 2 |
| MI | $1,423.19–$1,513.59 | 2 |
| MN | $1,434.20 | 1 |
| MO | $1,370.47–$1,440.95 | 3 |
| MS | $1,348.14 | 1 |
| MT | $1,476.80 | 1 |
| NC | $1,393.28 | 1 |
| ND | $1,422.43 | 1 |
| NE | $1,361.76 | 1 |
| NH | $1,496.44 | 1 |
| NJ | $1,580.54–$1,643.69 | 2 |
| NM | $1,432.82 | 1 |
| NV | $1,462.40 | 1 |
| NY | $1,411.98–$1,738.67 | 5 |
| OH | $1,412.08 | 1 |
| OK | $1,375.77 | 1 |
| OR | $1,446.69–$1,547.32 | 2 |
| PA | $1,410.06–$1,537.00 | 2 |
| PR | $1,483.91 | 1 |
| RI | $1,503.95 | 1 |
| SC | $1,405.87 | 1 |
| SD | $1,416.00 | 1 |
| TN | $1,365.80 | 1 |
| TX | $1,402.56–$1,511.54 | 8 |
| UT | $1,422.35 | 1 |
| VA | $1,437.16–$1,655.73 | 2 |
| VI | $1,483.91 | 1 |
| VT | $1,424.07 | 1 |
| WA | $1,503.22–$1,662.99 | 2 |
| WI | $1,381.74 | 1 |
| WV | $1,417.73 | 1 |
| WY | $1,453.11 | 1 |
How the 40845 rate is calculated
Each of 40845’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 · 40845
RVUs × geographic indexes × conversion factor
Work18.88
18.88 RVUs× 1.000 GPCI
Practice expense22.59
22.59 RVUs× 1.000 GPCI
Malpractice2.75
2.75 RVUs× 1.000 GPCI
Adjusted RVUs
44.2200
Conversion factor
$33.4009
Medicare rate
$1,476.99
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Riverside, CA inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
4,876
- Code
- 40845
- Physician work
- 18.88
- Practice expense
- 22.59
- Malpractice
- 2.75
GPCI2026.csv
20
- Locality
- Riverside, CA
- Physician work
- 1.018
- Practice expense
- 1.096
- Malpractice
- 0.853
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 18.88 | × 1.018 | 19.2198 |
| Practice expense | 22.59 | × 1.096 | 24.7586 |
| Malpractice | 2.75 | × 0.853 | 2.3457 |
| Total RVUs | 46.3242 | ||
| Conversion factor | × 33.4009 | ||
Office rate, Riverside, CA$1547.27
Office: (18.88 × 1.018 + 22.59 × 1.096 + 2.75 × 0.853) × $33.4009 = $1547.27
Facility: (18.88 × 1.018 + 9.78 × 1.096 + 2.75 × 0.853) × $33.4009 = $1078.33
Payment rules and modifiers for 40845
40845 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 40845
Mouth reconstruction, with bone graft
| 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) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.81/0.10 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 40845
Mouth reconstruction, with bone graft
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
40845 without 51 · national office
$1,476.99
Mouth reconstruction, with bone graft
40845-51 · Second procedure: 50%
$738.50
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 40845 has changed in Riverside, CA
40845 · Office / nonfacility
$1547.27
Effective 2026-10-01
The base rate is $40.63 higher than on 2025-10-01, moving from $1506.64 to $1547.27 (2.7%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
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
January 1, 2026
RVU26A
$1506.64changed to$1547.27
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 19.36 changed to 18.88
- Practice expense RVU 22.41 changed to 22.59
- Work GPCI 1.014 changed to 1.018
- Practice expense GPCI 1.093 changed to 1.096
- Malpractice GPCI 0.892 changed to 0.853
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$1550.54changed to$1506.64
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 22.42 changed to 22.41
- Malpractice RVU 2.74 changed to 2.75
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$1525.23changed to$1550.54
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$1573.73changed to$1525.23
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 22.40 changed to 22.42
- Malpractice RVU 2.71 changed to 2.74
- Work GPCI 1.021 changed to 1.014
- Practice expense GPCI 1.079 changed to 1.093
- Malpractice GPCI 0.924 changed to 0.892
January 1, 2023
RVU23A
$1595.45changed to$1573.73
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 22.19 changed to 22.40
- Work GPCI 1.027 changed to 1.021
- Practice expense GPCI 1.065 changed to 1.079
- Malpractice GPCI 0.955 changed to 0.924
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$1581.34changed to$1595.45
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 21.68 changed to 22.19
- Malpractice RVU 2.62 changed to 2.71
- Malpractice GPCI 0.896 changed to 0.955
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$1570.98changed to$1581.34
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 20.13 changed to 21.68
- Malpractice RVU 2.61 changed to 2.62
- Work GPCI 1.024 changed to 1.027
- Practice expense GPCI 1.070 changed to 1.065
- Malpractice GPCI 0.830 changed to 0.896
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$1562.79changed to$1570.98
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 19.91 changed to 20.13
- Malpractice RVU 2.94 changed to 2.61
- Work GPCI 1.021 changed to 1.024
- Practice expense GPCI 1.074 changed to 1.070
- Malpractice GPCI 0.753 changed to 0.830
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$1534.55changed to$1562.79
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 19.43 changed to 19.91
- Malpractice RVU 2.92 changed to 2.94
- Work GPCI 1.020 changed to 1.021
- Malpractice GPCI 0.689 changed to 0.753
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$1546.30changed to$1534.55
- Conversion factor 35.8887 changed to 35.9996
- Practice expense RVU 19.87 changed to 19.43
- Malpractice RVU 2.91 changed to 2.92
- Work GPCI 1.024 changed to 1.020
- Practice expense GPCI 1.079 changed to 1.074
- Malpractice GPCI 0.626 changed to 0.689
Held through RVU18B, RVU18C, RVU18D.
January 1, 2017
RVU17A
No ratechanged to$1546.30
Held through RVU17B, RVU17C, RVU17D.
January 1, 2013
RVU13AR
Earliest loaded release: No rate
Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $1,547.27 | $1,078.33 | RVU26D |
| 2026-07-01 | $1,547.27 | $1,078.33 | RVU26C |
| 2026-04-01 | $1,547.27 | $1,078.33 | RVU26B |
| 2026-01-01 | $1,547.27 | $1,078.33 | RVU26A |
| 2025-10-01 | $1,506.64 | $1,221.33 | RVU25D |
| 2025-07-01 | $1,506.64 | $1,221.33 | RVU25C |
| 2025-04-01 | $1,506.64 | $1,221.33 | RVU25B |
| 2025-01-01 | $1,506.64 | $1,221.33 | RVU25A |
| 2024-10-01 | $1,550.54 | $1,248.92 | RVU24D |
| 2024-07-01 | $1,550.54 | $1,248.92 | RVU24C |
| 2024-04-01 | $1,550.54 | $1,248.92 | RVU24B |
| 2024-03-09 | $1,550.54 | $1,248.92 | RVU24AR |
| 2024-01-01 | $1,525.23 | $1,228.54 | RVU24A |
| 2023-10-01 | $1,573.73 | $1,268.78 | RVU23D |
| 2023-07-01 | $1,573.73 | $1,268.78 | RVU23C |
| 2023-04-01 | $1,573.73 | $1,268.78 | RVU23B |
| 2023-01-01 | $1,573.73 | $1,268.78 | RVU23A |
| 2022-10-01 | $1,595.45 | $1,283.66 | RVU22D |
| 2022-07-01 | $1,595.45 | $1,283.66 | RVU22C |
| 2022-04-01 | $1,595.45 | $1,283.66 | RVU22B |
| 2022-01-01 | $1,595.45 | $1,283.66 | RVU22A |
| 2021-10-01 | $1,581.34 | $1,272.53 | RVU21D |
| 2021-07-01 | $1,581.34 | $1,272.53 | RVU21C |
| 2021-04-01 | $1,581.34 | $1,272.53 | RVU21B |
| 2021-01-01 | $1,581.34 | $1,272.53 | RVU21A |
| 2020-10-01 | $1,570.98 | $1,290.63 | RVU20D |
| 2020-07-01 | $1,570.98 | $1,290.63 | RVU20C |
| 2020-04-01 | $1,570.98 | $1,290.63 | RVU20B |
| 2020-01-01 | $1,570.98 | $1,290.63 | RVU20A |
| 2019-10-01 | $1,562.79 | $1,293.40 | RVU19D |
| 2019-07-01 | $1,562.79 | $1,293.40 | RVU19C |
| 2019-04-01 | $1,562.79 | $1,293.40 | RVU19B |
| 2019-01-01 | $1,562.79 | $1,293.40 | RVU19A |
| 2018-10-01 | $1,534.55 | $1,279.37 | RVU18D |
| 2018-07-01 | $1,534.55 | $1,279.37 | RVU18C |
| 2018-04-01 | $1,534.55 | $1,279.37 | RVU18B |
| 2018-01-01 | $1,534.55 | $1,279.37 | RVU18AR1 |
| 2017-10-01 | $1,546.30 | $1,289.56 | RVU17D |
| 2017-07-01 | $1,546.30 | $1,289.56 | RVU17C |
| 2017-04-01 | $1,546.30 | $1,289.56 | RVU17B |
| 2017-01-01 | $1,546.30 | $1,289.56 | RVU17A |
| 2016-10-01 | Rate data unavailable | Rate data unavailable | RVU16D |
| 2016-07-01 | Rate data unavailable | Rate data unavailable | RVU16C |
| 2016-04-01 | Rate data unavailable | Rate data unavailable | RVU16B |
| 2016-01-01 | Rate data unavailable | Rate data unavailable | RVU16A |
| 2015-10-01 | Rate data unavailable | Rate data unavailable | RVU15D |
| 2015-07-01 | Rate data unavailable | Rate data unavailable | RVU15C |
| 2015-04-01 | Rate data unavailable | Rate data unavailable | RVU15B |
| 2015-01-01 | Rate data unavailable | Rate data unavailable | RVU15A |
| 2014-10-01 | Rate data unavailable | Rate data unavailable | RVU14D |
| 2014-07-01 | Rate data unavailable | Rate data unavailable | RVU14C |
| 2014-04-01 | Rate data unavailable | Rate data unavailable | RVU14B |
| 2014-01-01 | Rate data unavailable | Rate data unavailable | RVU14A |
| 2013-10-01 | Rate data unavailable | Rate data unavailable | RVU13D |
| 2013-07-01 | Rate data unavailable | Rate data unavailable | RVU13C |
| 2013-04-01 | Rate data unavailable | Rate data unavailable | RVU13B |
| 2013-01-01 | Rate data unavailable | Rate data unavailable | RVU13AR |
Where the Riverside, CA rate applies
Riverside, CA is a Medicare payment area, not a city. Our Census mapping connects it to 127 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.
- Ontario
- Riverside
- San Bernardino
- Adelanto
- Aguanga
- Anza
- Apple Valley
- Baker
40845 billing questions
How does 40845 differ from 40840–40844?
40845 is for floor-of-mouth reconstruction using a bone graft. The other codes distinguish reconstruction extent and whether a skin graft is used; select the code that matches the documented technique.
Can this code be used for excision of a mouth lesion?
No. Lesion removal alone is not reconstruction with a bone graft. Report the code that describes the documented lesion excision when that is the service performed.
What documentation supports reporting 40845?
The operative report should identify the floor-of-mouth site, reconstructive work, and bone graft. It should also support the clinical indication.
Can modifier 50 be reported?
No. The descriptor and anatomy make modifier 50 inappropriate for this service.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full; other procedures are subject to the standard 50% multiple-procedure reduction.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
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
Fee sheets · Coming soon
Put 40845 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Join the waitlist