No office rate
The target determines the choice: 39401 is for mediastinal mass or tissue biopsy, while 39402 is for mediastinal lymph-node biopsy.
On this page
CMS RVU26D · Effective 2026-10-01
39401 in Chicago
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$351.28
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.
Thoracic surgery
About 39401: Mediastinoscopy with mediastinal biopsy
Report mediastinoscopy with biopsy when a surgeon uses a mediastinoscope to sample a mediastinal mass or tissue rather than mediastinal lymph nodes.
A thoracic surgeon typically performs this procedure in an operating room, advancing a mediastinoscope through an incision at the base of the neck to reach and biopsy a mediastinal mass or other mediastinal tissue. The approach provides access to tissue behind the sternum for diagnostic evaluation, including in patients being assessed for a mediastinal lesion. The biopsy is part of the reported service.
Choose this code for mediastinal tissue or mass biopsy; use the lymph-node biopsy code when the sampled targets are mediastinal lymph nodes. The operative report should identify the mediastinal target and document the scope-guided biopsy. The 0-day global period includes same-day preoperative and postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate for this service. Medicare does not pay an assistant at surgery, and co-surgeons and team surgery are not permitted.
CMS billing rules for 39401
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is 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 adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Statutory restriction: assistant at surgery is not paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU5.30 · 61%
- Practice expense (office) RVU2.14 · 24%
- Malpractice RVU1.32 · 15%
177
Medicare services in 2024 · #4435 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.
39401 compared with similar codes
Office rates for Chicago, from the same CMS release.
No office rate
Both can involve mediastinal biopsy, but 32606 describes a thoracoscopic diagnostic approach; 39401 describes mediastinoscopy.
39499
No office rateUnlisted px mediastinum
Use 39499 only when the mediastinal procedure performed is not represented by a specific listed code such as 39401.
The same code, a different location
How does Chicago compare?
39401 across payment areas
Same release and payment basis · bars start at $0
Chicago · 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.
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.
Other payment areas listed in Illinois 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
Manhattan
New York · 39401
Office
Unavailable
Facility
$341.34
No comparable office rate is available.
Alaska*
Alaska · 39401
Office
Unavailable
Facility
$365.95
No comparable office rate is available.
Alabama
Alabama · 39401
Office
Unavailable
Facility
$264.52
No comparable office rate is available.
Arkansas
Arkansas · 39401
Office
Unavailable
Facility
$261.13
No comparable office rate is available.
Arizona
Arizona · 39401
Office
Unavailable
Facility
$284.03
No comparable office rate is available.
Bakersfield
California · 39401
Office
Unavailable
Facility
$285.58
No comparable office rate is available.
Chico
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
El Centro
California · 39401
Office
Unavailable
Facility
$282.23
No comparable office rate is available.
Fresno
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Hanford-Corcoran
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Madera
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Merced
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Modesto
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Napa
California · 39401
Office
Unavailable
Facility
$304.78
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 39401
Office
Unavailable
Facility
$293.94
No comparable office rate is available.
Redding
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Rest Of California
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 39401
Office
Unavailable
Facility
$296.16
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 39401
Office
Unavailable
Facility
$290.16
No comparable office rate is available.
Salinas
California · 39401
Office
Unavailable
Facility
$288.99
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 39401
Office
Unavailable
Facility
$291.72
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 39401
Office
Unavailable
Facility
$314.86
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 39401
Office
Unavailable
Facility
$313.36
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 39401
Office
Unavailable
Facility
$323.20
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 39401
Office
Unavailable
Facility
$317.07
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 39401
Office
Unavailable
Facility
$285.08
No comparable office rate is available.
Santa Cruz-Watsonville
California · 39401
Office
Unavailable
Facility
$291.22
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 39401
Office
Unavailable
Facility
$288.96
No comparable office rate is available.
Santa Rosa-Petaluma
California · 39401
Office
Unavailable
Facility
$293.74
No comparable office rate is available.
Stockton
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Vallejo
California · 39401
Office
Unavailable
Facility
$302.62
No comparable office rate is available.
Visalia
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Yuba City
California · 39401
Office
Unavailable
Facility
$282.01
No comparable office rate is available.
Colorado
Colorado · 39401
Office
Unavailable
Facility
$289.64
No comparable office rate is available.
Connecticut
Connecticut · 39401
Office
Unavailable
Facility
$310.89
No comparable office rate is available.
Delaware
Delaware · 39401
Office
Unavailable
Facility
$288.17
No comparable office rate is available.
Fort Lauderdale
Florida · 39401
Office
Unavailable
Facility
$329.15
No comparable office rate is available.
Rest Of Florida
Florida · 39401
Office
Unavailable
Facility
$311.62
No comparable office rate is available.
Atlanta
Georgia · 39401
Office
Unavailable
Facility
$303.13
No comparable office rate is available.
Rest Of Georgia
Georgia · 39401
Office
Unavailable
Facility
$293.34
No comparable office rate is available.
Hawaii, Guam
Hawaii · 39401
Office
Unavailable
Facility
$283.82
No comparable office rate is available.
Iowa
Iowa · 39401
Office
Unavailable
Facility
$259.93
No comparable office rate is available.
Idaho
Idaho · 39401
Office
Unavailable
Facility
$263.64
No comparable office rate is available.
Indiana
Indiana · 39401
Office
Unavailable
Facility
$264.71
No comparable office rate is available.
Kansas
Kansas · 39401
Office
Unavailable
Facility
$263.86
No comparable office rate is available.
Kentucky
Kentucky · 39401
Office
Unavailable
Facility
$280.91
No comparable office rate is available.
New Orleans
Louisiana · 39401
Office
Unavailable
Facility
$294.37
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 39401
Office
Unavailable
Facility
$282.52
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 39401
Office
Unavailable
Facility
$308.87
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 39401
Office
Unavailable
Facility
$290.26
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 39401
Office
Unavailable
Facility
$311.09
No comparable office rate is available.
Rest Of Maryland
Maryland · 39401
Office
Unavailable
Facility
$291.60
No comparable office rate is available.
Rest Of Maine
Maine · 39401
Office
Unavailable
Facility
$270.21
No comparable office rate is available.
Southern Maine
Maine · 39401
Office
Unavailable
Facility
$275.68
No comparable office rate is available.
Detroit
Michigan · 39401
Office
Unavailable
Facility
$320.34
No comparable office rate is available.
Rest Of Michigan
Michigan · 39401
Office
Unavailable
Facility
$292.06
No comparable office rate is available.
Minnesota
Minnesota · 39401
Office
Unavailable
Facility
$263.63
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 39401
Office
Unavailable
Facility
$287.22
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 39401
Office
Unavailable
Facility
$289.25
No comparable office rate is available.
Rest Of Missouri
Missouri · 39401
Office
Unavailable
Facility
$281.58
No comparable office rate is available.
Mississippi
Mississippi · 39401
Office
Unavailable
Facility
$271.15
No comparable office rate is available.
Montana**
Montana · 39401
Office
Unavailable
Facility
$292.50
No comparable office rate is available.
North Carolina
North Carolina · 39401
Office
Unavailable
Facility
$271.89
No comparable office rate is available.
North Dakota**
North Dakota · 39401
Office
Unavailable
Facility
$266.40
No comparable office rate is available.
Nebraska
Nebraska · 39401
Office
Unavailable
Facility
$259.66
No comparable office rate is available.
New Hampshire
New Hampshire · 39401
Office
Unavailable
Facility
$290.01
No comparable office rate is available.
Northern Nj
New Jersey · 39401
Office
Unavailable
Facility
$318.18
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 39401
Office
Unavailable
Facility
$310.53
No comparable office rate is available.
New Mexico
New Mexico · 39401
Office
Unavailable
Facility
$295.52
No comparable office rate is available.
Nevada**
Nevada · 39401
Office
Unavailable
Facility
$285.30
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 39401
Office
Unavailable
Facility
$355.22
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 39401
Office
Unavailable
Facility
$316.61
No comparable office rate is available.
Queens
New York · 39401
Office
Unavailable
Facility
$336.42
No comparable office rate is available.
Rest Of New York
New York · 39401
Office
Unavailable
Facility
$275.92
No comparable office rate is available.
Ohio
Ohio · 39401
Office
Unavailable
Facility
$286.73
No comparable office rate is available.
Oklahoma
Oklahoma · 39401
Office
Unavailable
Facility
$275.11
No comparable office rate is available.
Portland
Oregon · 39401
Office
Unavailable
Facility
$292.07
No comparable office rate is available.
Rest Of Oregon
Oregon · 39401
Office
Unavailable
Facility
$279.21
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 39401
Office
Unavailable
Facility
$307.22
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 39401
Office
Unavailable
Facility
$284.31
No comparable office rate is available.
Puerto Rico
Puerto Rico · 39401
Office
Unavailable
Facility
$292.72
No comparable office rate is available.
Rhode Island
Rhode Island · 39401
Office
Unavailable
Facility
$293.55
No comparable office rate is available.
South Carolina
South Carolina · 39401
Office
Unavailable
Facility
$280.55
No comparable office rate is available.
South Dakota**
South Dakota · 39401
Office
Unavailable
Facility
$263.32
No comparable office rate is available.
Tennessee
Tennessee · 39401
Office
Unavailable
Facility
$265.67
No comparable office rate is available.
Austin
Texas · 39401
Office
Unavailable
Facility
$292.07
No comparable office rate is available.
Beaumont
Texas · 39401
Office
Unavailable
Facility
$283.03
No comparable office rate is available.
Brazoria
Texas · 39401
Office
Unavailable
Facility
$283.67
No comparable office rate is available.
Dallas
Texas · 39401
Office
Unavailable
Facility
$287.64
No comparable office rate is available.
Fort Worth
Texas · 39401
Office
Unavailable
Facility
$287.50
No comparable office rate is available.
Galveston
Texas · 39401
Office
Unavailable
Facility
$285.92
No comparable office rate is available.
Houston
Texas · 39401
Office
Unavailable
Facility
$310.09
No comparable office rate is available.
Rest Of Texas
Texas · 39401
Office
Unavailable
Facility
$284.67
No comparable office rate is available.
Utah
Utah · 39401
Office
Unavailable
Facility
$283.81
No comparable office rate is available.
Virginia
Virginia · 39401
Office
Unavailable
Facility
$278.41
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 39401
Office
Unavailable
Facility
$292.72
No comparable office rate is available.
Vermont
Vermont · 39401
Office
Unavailable
Facility
$270.10
No comparable office rate is available.
Rest Of Washington
Washington · 39401
Office
Unavailable
Facility
$288.14
No comparable office rate is available.
Seattle (King Cnty)
Washington · 39401
Office
Unavailable
Facility
$309.60
No comparable office rate is available.
Wisconsin
Wisconsin · 39401
Office
Unavailable
Facility
$259.08
No comparable office rate is available.
West Virginia
West Virginia · 39401
Office
Unavailable
Facility
$302.23
No comparable office rate is available.
Wyoming**
Wyoming · 39401
Office
Unavailable
Facility
$281.13
No comparable office rate is available.
See how rates vary across the country
39401 · 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?
Chicago is a Medicare payment area. Our Census mapping connects it to 137 cities and communities in Illinois, 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.
- 39401 in Chicago
Multiple payment areas
- 39401 in Alsip
- 39401 in Arlington Heights
- 39401 in Barrington
Multiple payment areas
- 39401 in Barrington Hills
Multiple payment areas
- 39401 in Bartlett
Multiple payment areas
- 39401 in Bedford Park
- 39401 in Bellwood
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 39401 in Chicago. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$386.41
$351.28 × 110% = $386.41
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 39401 in Chicago.
PPRRVU2026_Oct_nonQPP.csv
4,778
- Code
- 39401
- Physician work
- 5.30
- Practice expense
- 2.14
- Malpractice
- 1.32
GPCI2026.csv
48
- Locality
- Chicago
- Physician work
- 1.007
- Practice expense
- 1.005
- Malpractice
- 2.295
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 5.30 | × 1.007 | 5.3371 |
| Practice expense | 2.14 | × 1.005 | 2.1507 |
| Malpractice | 1.32 | × 2.295 | 3.0294 |
| Total RVUs | 10.5172 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Chicago$351.28
Open 39401 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 5.3 | 1.007 |
| Practice expense | 2.14 | 1.005 |
| Malpractice | 1.32 | 2.295 |
(5.3 × 1.007 + 2.14 × 1.005 + 1.32 × 2.295) × $33.4009 = $351.28
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
39401 · 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 | $351.28 | RVU26D |
| 2026-07-01 | Not available in this setting | $351.28 | RVU26C |
| 2026-04-01 | Not available in this setting | $351.28 | RVU26B |
| 2026-01-01 | Not available in this setting | $351.28 | RVU26A |
| 2025-10-01 | Not available in this setting | $342.80 | RVU25D |
| 2025-07-01 | Not available in this setting | $342.80 | RVU25C |
| 2025-04-01 | Not available in this setting | $342.80 | RVU25B |
| 2025-01-01 | Not available in this setting | $342.80 | RVU25A |
39401 billing questions
When should 39401 be chosen instead of 39402?
Use 39401 when the mediastinoscopy biopsy targets a mediastinal mass or other mediastinal tissue. Use 39402 when the sampled targets are mediastinal lymph nodes.
Is the biopsy separately reported from the mediastinoscopy?
No. The biopsy is included in the mediastinoscopy service described by this code.
What care is included in the global period?
The 0-day global period includes same-day preoperative and postoperative care.
Can modifier 50 or an assistant-at-surgery modifier be used?
Modifier 50 is inappropriate for this service. Medicare does not pay an assistant at surgery for this procedure.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction.
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.
4,77539010,,Exploration of chest,A,,12.86,6.82,NA,6.82,,3.14,22.82,22.82,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,77639200,,Resect mediastinal cyst,A,,14.71,6.49,NA,6.49,,3.70,24.90,24.90,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,77739220,,Resect mediastinal tumor,A,,19.06,8.47,NA,8.47,,4.44,31.97,31.97,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,77839401,,Mediastinoscpy w/medstnl bx,A,,5.30,2.14,NA,2.14,,1.32,8.76,8.76,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,77939402,,Mediastinoscpy w/lmph nod bx,A,,7.07,2.48,NA,2.48,,1.76,11.31,11.31,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,78039499,,Unlisted px mediastinum,C,,0.00,0.00,,0.00,,0.00,0.00,0.00,0,YYY,0.00,0.00,0.00,2,0,2,1,1,9,,33.4009,09,0,99,0.00,0.00,0.00
4,78139501,,Repair diaphragm laceration,A,,13.63,7.31,NA,7.31,,3.31,24.25,24.25,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4510212,GA,99,REST OF GEORGIA,1.000,0.892,1.192
4601212,HI,01,"HAWAII, GUAM",1.000,1.137,0.579
4702202,ID,00,IDAHO,1.000,0.920,0.473
4806102,IL,16,CHICAGO,1.007,1.005,2.295
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