No office rate
Use 24100 for open elbow-joint access with synovial biopsy only. Use 24101 when the documented service includes broader joint exploration or removal.
On this page
CMS RVU26D · Effective 2026-10-01
24100 in Modesto
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$417.59
Base rate per service
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.
Orthopedic surgery
About 24100: Open elbow synovial biopsy
Reports open access to the elbow joint to obtain synovial tissue for biopsy when the operation does not include a broader joint procedure.
The surgeon opens the elbow joint and removes synovial tissue for diagnostic examination. Orthopedic surgeons typically perform this procedure in a hospital or other surgical facility when tissue sampling is needed to investigate an abnormal joint lining, such as suspected inflammatory or infectious disease. The service is limited to obtaining the biopsy; it is not the code for a more extensive joint exploration or synovectomy.
Report the code when the operative note supports an open elbow-joint approach and synovial biopsy as the procedure performed. The code has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. For bilateral reporting with modifier 50, CMS pays 150%. An assistant at surgery may be paid; co-surgeons require supporting documentation, and team surgery is not permitted.
CMS billing rules for 24100
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral procedure with modifier 50 is paid at 150%.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU4.94 · 40%
- Practice expense (office) RVU6.30 · 51%
- Malpractice RVU1.07 · 9%
17
Medicare services in 2024 · #5994 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.
24100 compared with similar codes
Office rates for Modesto, from the same CMS release.
No office rate
24102 describes elbow synovectomy, a therapeutic removal of synovial tissue; 24100 is for obtaining tissue samples for biopsy.
No office rate
24105 is for excision of the olecranon bursa, an extra-articular structure. This code is for synovial biopsy within the elbow joint.
The same code, a different location
How does Modesto compare?
24100 across payment areas
Same release and payment basis · bars start at $0
Modesto · This locality
Unavailable
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
No comparable rate is available in this setting.
Other payment areas listed in California appear first, followed by selected cross-country examples. The chart compares amounts, not distance.
The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.
Compare all 108 other payment areas
Madera
California · 24100
Office
Unavailable
Facility
$417.59
No comparable office rate is available.
Merced
California · 24100
Office
Unavailable
Facility
$417.59
No comparable office rate is available.
Napa
California · 24100
Office
Unavailable
Facility
$470.89
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 24100
Office
Unavailable
Facility
$440.61
No comparable office rate is available.
Redding
California · 24100
Office
Unavailable
Facility
$417.59
No comparable office rate is available.
Rest Of California
California · 24100
Office
Unavailable
Facility
$417.59
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 24100
Office
Unavailable
Facility
$429.08
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 24100
Office
Unavailable
Facility
$434.82
No comparable office rate is available.
Salinas
California · 24100
Office
Unavailable
Facility
$433.15
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 24100
Office
Unavailable
Facility
$440.99
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 24100
Office
Unavailable
Facility
$493.78
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 24100
Office
Unavailable
Facility
$492.56
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 24100
Office
Unavailable
Facility
$505.74
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 24100
Office
Unavailable
Facility
$500.77
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 24100
Office
Unavailable
Facility
$426.64
No comparable office rate is available.
Santa Cruz-Watsonville
California · 24100
Office
Unavailable
Facility
$443.29
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 24100
Office
Unavailable
Facility
$434.13
No comparable office rate is available.
Santa Rosa-Petaluma
California · 24100
Office
Unavailable
Facility
$447.51
No comparable office rate is available.
Stockton
California · 24100
Office
Unavailable
Facility
$417.59
No comparable office rate is available.
Vallejo
California · 24100
Office
Unavailable
Facility
$469.14
No comparable office rate is available.
Visalia
California · 24100
Office
Unavailable
Facility
$417.59
No comparable office rate is available.
Yuba City
California · 24100
Office
Unavailable
Facility
$417.59
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 24100
Office
Unavailable
Facility
$461.57
No comparable office rate is available.
Miami
Florida · 24100
Office
Unavailable
Facility
$474.44
No comparable office rate is available.
Chicago
Illinois · 24100
Office
Unavailable
Facility
$459.65
No comparable office rate is available.
Manhattan
New York · 24100
Office
Unavailable
Facility
$476.76
No comparable office rate is available.
Alaska*
Alaska · 24100
Office
Unavailable
Facility
$491.30
No comparable office rate is available.
Alabama
Alabama · 24100
Office
Unavailable
Facility
$369.35
No comparable office rate is available.
Arkansas
Arkansas · 24100
Office
Unavailable
Facility
$364.16
No comparable office rate is available.
Arizona
Arizona · 24100
Office
Unavailable
Facility
$399.50
No comparable office rate is available.
Colorado
Colorado · 24100
Office
Unavailable
Facility
$418.79
No comparable office rate is available.
Connecticut
Connecticut · 24100
Office
Unavailable
Facility
$438.17
No comparable office rate is available.
Delaware
Delaware · 24100
Office
Unavailable
Facility
$405.86
No comparable office rate is available.
Fort Lauderdale
Florida · 24100
Office
Unavailable
Facility
$442.78
No comparable office rate is available.
Rest Of Florida
Florida · 24100
Office
Unavailable
Facility
$419.88
No comparable office rate is available.
Atlanta
Georgia · 24100
Office
Unavailable
Facility
$422.21
No comparable office rate is available.
Rest Of Georgia
Georgia · 24100
Office
Unavailable
Facility
$395.30
No comparable office rate is available.
Hawaii, Guam
Hawaii · 24100
Office
Unavailable
Facility
$424.95
No comparable office rate is available.
Iowa
Iowa · 24100
Office
Unavailable
Facility
$371.73
No comparable office rate is available.
Idaho
Idaho · 24100
Office
Unavailable
Facility
$375.50
No comparable office rate is available.
East St. Louis
Illinois · 24100
Office
Unavailable
Facility
$430.57
No comparable office rate is available.
Rest Of Illinois
Illinois · 24100
Office
Unavailable
Facility
$412.98
No comparable office rate is available.
Suburban Chicago
Illinois · 24100
Office
Unavailable
Facility
$445.59
No comparable office rate is available.
Indiana
Indiana · 24100
Office
Unavailable
Facility
$377.43
No comparable office rate is available.
Kansas
Kansas · 24100
Office
Unavailable
Facility
$373.24
No comparable office rate is available.
Kentucky
Kentucky · 24100
Office
Unavailable
Facility
$384.77
No comparable office rate is available.
New Orleans
Louisiana · 24100
Office
Unavailable
Facility
$403.61
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 24100
Office
Unavailable
Facility
$385.47
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 24100
Office
Unavailable
Facility
$454.82
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 24100
Office
Unavailable
Facility
$417.70
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 24100
Office
Unavailable
Facility
$437.64
No comparable office rate is available.
Rest Of Maryland
Maryland · 24100
Office
Unavailable
Facility
$412.41
No comparable office rate is available.
Rest Of Maine
Maine · 24100
Office
Unavailable
Facility
$380.82
No comparable office rate is available.
Southern Maine
Maine · 24100
Office
Unavailable
Facility
$396.08
No comparable office rate is available.
Detroit
Michigan · 24100
Office
Unavailable
Facility
$428.32
No comparable office rate is available.
Rest Of Michigan
Michigan · 24100
Office
Unavailable
Facility
$397.47
No comparable office rate is available.
Minnesota
Minnesota · 24100
Office
Unavailable
Facility
$392.11
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 24100
Office
Unavailable
Facility
$397.51
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 24100
Office
Unavailable
Facility
$401.14
No comparable office rate is available.
Rest Of Missouri
Missouri · 24100
Office
Unavailable
Facility
$381.20
No comparable office rate is available.
Mississippi
Mississippi · 24100
Office
Unavailable
Facility
$372.59
No comparable office rate is available.
Montana**
Montana · 24100
Office
Unavailable
Facility
$411.09
No comparable office rate is available.
North Carolina
North Carolina · 24100
Office
Unavailable
Facility
$384.16
No comparable office rate is available.
North Dakota**
North Dakota · 24100
Office
Unavailable
Facility
$389.94
No comparable office rate is available.
Nebraska
Nebraska · 24100
Office
Unavailable
Facility
$372.73
No comparable office rate is available.
New Hampshire
New Hampshire · 24100
Office
Unavailable
Facility
$415.33
No comparable office rate is available.
Northern Nj
New Jersey · 24100
Office
Unavailable
Facility
$457.66
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 24100
Office
Unavailable
Facility
$440.59
No comparable office rate is available.
New Mexico
New Mexico · 24100
Office
Unavailable
Facility
$400.88
No comparable office rate is available.
Nevada**
Nevada · 24100
Office
Unavailable
Facility
$405.41
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 24100
Office
Unavailable
Facility
$492.12
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 24100
Office
Unavailable
Facility
$446.09
No comparable office rate is available.
Queens
New York · 24100
Office
Unavailable
Facility
$475.82
No comparable office rate is available.
Rest Of New York
New York · 24100
Office
Unavailable
Facility
$390.03
No comparable office rate is available.
Ohio
Ohio · 24100
Office
Unavailable
Facility
$393.14
No comparable office rate is available.
Oklahoma
Oklahoma · 24100
Office
Unavailable
Facility
$380.68
No comparable office rate is available.
Portland
Oregon · 24100
Office
Unavailable
Facility
$428.01
No comparable office rate is available.
Rest Of Oregon
Oregon · 24100
Office
Unavailable
Facility
$399.71
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 24100
Office
Unavailable
Facility
$429.66
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 24100
Office
Unavailable
Facility
$391.94
No comparable office rate is available.
Puerto Rico
Puerto Rico · 24100
Office
Unavailable
Facility
$412.94
No comparable office rate is available.
Rhode Island
Rhode Island · 24100
Office
Unavailable
Facility
$417.38
No comparable office rate is available.
South Carolina
South Carolina · 24100
Office
Unavailable
Facility
$389.81
No comparable office rate is available.
South Dakota**
South Dakota · 24100
Office
Unavailable
Facility
$387.43
No comparable office rate is available.
Tennessee
Tennessee · 24100
Office
Unavailable
Facility
$375.47
No comparable office rate is available.
Austin
Texas · 24100
Office
Unavailable
Facility
$419.63
No comparable office rate is available.
Beaumont
Texas · 24100
Office
Unavailable
Facility
$389.69
No comparable office rate is available.
Brazoria
Texas · 24100
Office
Unavailable
Facility
$402.73
No comparable office rate is available.
Dallas
Texas · 24100
Office
Unavailable
Facility
$406.73
No comparable office rate is available.
Fort Worth
Texas · 24100
Office
Unavailable
Facility
$405.09
No comparable office rate is available.
Galveston
Texas · 24100
Office
Unavailable
Facility
$404.87
No comparable office rate is available.
Houston
Texas · 24100
Office
Unavailable
Facility
$424.45
No comparable office rate is available.
Rest Of Texas
Texas · 24100
Office
Unavailable
Facility
$396.97
No comparable office rate is available.
Utah
Utah · 24100
Office
Unavailable
Facility
$394.89
No comparable office rate is available.
Virginia
Virginia · 24100
Office
Unavailable
Facility
$397.08
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 24100
Office
Unavailable
Facility
$412.94
No comparable office rate is available.
Vermont
Vermont · 24100
Office
Unavailable
Facility
$391.41
No comparable office rate is available.
Rest Of Washington
Washington · 24100
Office
Unavailable
Facility
$415.92
No comparable office rate is available.
Seattle (King Cnty)
Washington · 24100
Office
Unavailable
Facility
$460.64
No comparable office rate is available.
Wisconsin
Wisconsin · 24100
Office
Unavailable
Facility
$377.60
No comparable office rate is available.
West Virginia
West Virginia · 24100
Office
Unavailable
Facility
$399.00
No comparable office rate is available.
Wyoming**
Wyoming · 24100
Office
Unavailable
Facility
$401.87
No comparable office rate is available.
See how rates vary across the country
24100 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.
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 all state and territory rates as a table
| State / territory | 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 |
Where does this rate apply?
Modesto is a Medicare payment area. Our Census mapping connects it to 33 cities and communities in California, including the examples shown here.
Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 24100 in Modesto. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$459.35
$417.59 × 110% = $459.35
A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.
Working with a whole code list?
Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.
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 24100 in Modesto.
PPRRVU2026_Oct_nonQPP.csv
2,266
- Code
- 24100
- Physician work
- 4.94
- Practice expense
- 6.30
- Malpractice
- 1.07
GPCI2026.csv
16
- Locality
- Modesto
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 4.94 | × 1.017 | 5.0240 |
| Practice expense | 6.30 | × 1.096 | 6.9048 |
| Malpractice | 1.07 | × 0.536 | 0.5735 |
| Total RVUs | 12.5023 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Modesto$417.59
Open 24100 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 4.94 | 1.017 |
| Practice expense | 6.3 | 1.096 |
| Malpractice | 1.07 | 0.536 |
(4.94 × 1.017 + 6.3 × 1.096 + 1.07 × 0.536) × $33.4009 = $417.59
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.
How this rate has changed
24100 · 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
Explore release dates and calculate this code in an earlier period →
Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.
Inspect every release and its CMS source
| Effective from | Office / nonfacility | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $417.59 | RVU26D |
| 2026-07-01 | Not available in this setting | $417.59 | RVU26C |
| 2026-04-01 | Not available in this setting | $417.59 | RVU26B |
| 2026-01-01 | Not available in this setting | $417.59 | RVU26A |
| 2025-10-01 | Not available in this setting | $430.31 | RVU25D |
| 2025-07-01 | Not available in this setting | $430.31 | RVU25C |
| 2025-04-01 | Not available in this setting | $430.31 | RVU25B |
| 2025-01-01 | Not available in this setting | $430.31 | RVU25A |
24100 billing questions
When should this code be used instead of 24101?
Use this code for open elbow-joint access to obtain synovial tissue only. Code 24101 describes a broader joint exploration or removal service, with or without biopsy.
Does this code include the pathology examination?
It reports the surgeon’s procedure to obtain the tissue, not the pathologist’s examination. A separately performed pathology service may be reported by the appropriate laboratory or pathologist.
How does this differ from elbow synovectomy?
This code covers biopsy sampling of synovium. When the operation removes synovial tissue as a therapeutic synovectomy, consider 24102 instead.
What documentation supports reporting this service?
The operative report should establish an open approach to the elbow joint and removal of synovial tissue for biopsy. It should distinguish sampling from joint exploration, loose-body removal, or synovectomy.
How are bilateral procedures and multiple same-session procedures handled?
CMS pays bilateral reporting with modifier 50 at 150%. For multiple procedures in the same session, the highest-valued procedure is paid in full and other procedures at 50%.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons are paid only with supporting documentation; team surgery is not permitted.
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.
2,26324076,,Ex arm/elbow tum deep < 5 cm,A,,7.22,6.82,NA,6.82,,1.56,15.60,15.60,0,090,0.10,0.69,0.21,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,26424077,,Rad rescj tum tiss a/e <5cm,A,,15.33,9.82,NA,9.82,,3.53,28.68,28.68,0,090,0.10,0.69,0.21,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,26524079,,Rad rescj tum tiss a/e 5 cm+,A,,20.09,12.00,NA,12.00,,4.62,36.71,36.71,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,26624100,,Arthrt elbw synovial bx only,A,,4.94,6.30,NA,6.30,,1.07,12.31,12.31,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,26724101,,Arthrt elbw jt expl bx rmvl,A,,6.14,7.06,NA,7.06,,1.25,14.45,14.45,0,090,0.10,0.69,0.21,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,26824102,,Arthrt elbow w/synovectomy,A,,8.05,7.66,NA,7.66,,1.62,17.33,17.33,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,26924105,,Excision olecranon bursa,A,,3.69,6.28,NA,6.28,,0.75,10.72,10.72,0,090,0.10,0.69,0.21,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1301182,CA,18,LOS ANGELES-LONG BEACH-ANAHEIM (LOS ANGELES/ORANGE CNTY),1.041,1.183,0.664
1401112,CA,58,MADERA,1.017,1.096,0.536
1501112,CA,59,MERCED,1.017,1.096,0.536
1601112,CA,60,MODESTO,1.017,1.096,0.536
1701112,CA,51,NAPA,1.063,1.318,0.508
1801182,CA,17,OXNARD-THOUSAND OAKS-VENTURA,1.028,1.182,0.623
1901112,CA,61,REDDING,1.017,1.096,0.536