61340 is specific to a subtemporal approach. Code 61322 describes decompressive craniectomy without lobectomy; the operative technique and documented service determine the choice.
On this page
CMS RVU26D · Effective 2026-10-01
61340 in Chicago
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$1793.10
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.
Cranial surgery
About 61340: Subtemporal cranial decompression
Reports a neurosurgical decompression through a subtemporal approach, typically to relieve pressure from severe cerebral swelling.
A neurosurgeon performs this operation through an opening in the temporal region of the skull to create space for a swollen brain and relieve intracranial pressure. It is associated with severe cerebral edema, including malignant brain swelling, and is generally performed in an operating room in a hospital or other facility setting. The operative report should identify the subtemporal approach, the clinical reason for decompression, and the side or sides treated.
Report the code for the subtemporal decompression itself, distinguishing it from decompression coded for another cranial location or approach. It has a 90-day global period: the day-before preoperative visit and related postoperative care during the 90 days are included. When other procedures are performed in the same session, the highest-valued procedure is paid in full and the others at 50%. For bilateral surgery, modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 61340
- 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 RVU19.61 · 46%
- Practice expense (office) RVU14.86 · 35%
- Malpractice RVU8.28 · 19%
16
Medicare services in 2024 · #6044 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.
61340 compared with similar codes
Office rates for Chicago, from the same CMS release.
Code 61323 includes decompression with lobectomy. Use 61340 for the documented subtemporal decompression when that lobectomy service is not part of the operation.
Code 61345 concerns cranial decompression in the posterior fossa. Code 61340 is for a subtemporal approach, so the operative location separates them.
The same code, a different location
How does Chicago compare?
61340 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 · 61340
Office
Unavailable
Facility
$1712.28
No comparable office rate is available.
Alaska*
Alaska · 61340
Office
Unavailable
Facility
$1663.47
No comparable office rate is available.
Alabama
Alabama · 61340
Office
Unavailable
Facility
$1245.82
No comparable office rate is available.
Arkansas
Arkansas · 61340
Office
Unavailable
Facility
$1223.77
No comparable office rate is available.
Arizona
Arizona · 61340
Office
Unavailable
Facility
$1372.68
No comparable office rate is available.
Bakersfield
California · 61340
Office
Unavailable
Facility
$1379.85
No comparable office rate is available.
Chico
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
El Centro
California · 61340
Office
Unavailable
Facility
$1359.73
No comparable office rate is available.
Fresno
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Hanford-Corcoran
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Madera
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Merced
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Modesto
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Napa
California · 61340
Office
Unavailable
Facility
$1490.92
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 61340
Office
Unavailable
Facility
$1432.30
No comparable office rate is available.
Redding
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Rest Of California
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 61340
Office
Unavailable
Facility
$1446.67
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 61340
Office
Unavailable
Facility
$1404.05
No comparable office rate is available.
Salinas
California · 61340
Office
Unavailable
Facility
$1398.79
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 61340
Office
Unavailable
Facility
$1418.16
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 61340
Office
Unavailable
Facility
$1543.99
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 61340
Office
Unavailable
Facility
$1534.59
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 61340
Office
Unavailable
Facility
$1591.00
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 61340
Office
Unavailable
Facility
$1552.55
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 61340
Office
Unavailable
Facility
$1379.69
No comparable office rate is available.
Santa Cruz-Watsonville
California · 61340
Office
Unavailable
Facility
$1420.03
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 61340
Office
Unavailable
Facility
$1400.30
No comparable office rate is available.
Santa Rosa-Petaluma
California · 61340
Office
Unavailable
Facility
$1432.38
No comparable office rate is available.
Stockton
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Vallejo
California · 61340
Office
Unavailable
Facility
$1477.37
No comparable office rate is available.
Visalia
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Yuba City
California · 61340
Office
Unavailable
Facility
$1358.35
No comparable office rate is available.
Colorado
Colorado · 61340
Office
Unavailable
Facility
$1406.95
No comparable office rate is available.
Connecticut
Connecticut · 61340
Office
Unavailable
Facility
$1537.28
No comparable office rate is available.
Delaware
Delaware · 61340
Office
Unavailable
Facility
$1397.27
No comparable office rate is available.
Fort Lauderdale
Florida · 61340
Office
Unavailable
Facility
$1657.80
No comparable office rate is available.
Rest Of Florida
Florida · 61340
Office
Unavailable
Facility
$1545.16
No comparable office rate is available.
Atlanta
Georgia · 61340
Office
Unavailable
Facility
$1493.38
No comparable office rate is available.
Rest Of Georgia
Georgia · 61340
Office
Unavailable
Facility
$1427.38
No comparable office rate is available.
Hawaii, Guam
Hawaii · 61340
Office
Unavailable
Facility
$1379.46
No comparable office rate is available.
Iowa
Iowa · 61340
Office
Unavailable
Facility
$1218.93
No comparable office rate is available.
Idaho
Idaho · 61340
Office
Unavailable
Facility
$1242.43
No comparable office rate is available.
Indiana
Indiana · 61340
Office
Unavailable
Facility
$1249.50
No comparable office rate is available.
Kansas
Kansas · 61340
Office
Unavailable
Facility
$1243.07
No comparable office rate is available.
Kentucky
Kentucky · 61340
Office
Unavailable
Facility
$1349.29
No comparable office rate is available.
New Orleans
Louisiana · 61340
Office
Unavailable
Facility
$1436.22
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 61340
Office
Unavailable
Facility
$1359.19
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 61340
Office
Unavailable
Facility
$1520.61
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 61340
Office
Unavailable
Facility
$1408.53
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 61340
Office
Unavailable
Facility
$1540.15
No comparable office rate is available.
Rest Of Maryland
Maryland · 61340
Office
Unavailable
Facility
$1417.72
No comparable office rate is available.
Rest Of Maine
Maine · 61340
Office
Unavailable
Facility
$1283.64
No comparable office rate is available.
Southern Maine
Maine · 61340
Office
Unavailable
Facility
$1321.37
No comparable office rate is available.
Detroit
Michigan · 61340
Office
Unavailable
Facility
$1600.24
No comparable office rate is available.
Rest Of Michigan
Michigan · 61340
Office
Unavailable
Facility
$1420.38
No comparable office rate is available.
Minnesota
Minnesota · 61340
Office
Unavailable
Facility
$1247.58
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 61340
Office
Unavailable
Facility
$1391.25
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 61340
Office
Unavailable
Facility
$1404.62
No comparable office rate is available.
Rest Of Missouri
Missouri · 61340
Office
Unavailable
Facility
$1352.20
No comparable office rate is available.
Mississippi
Mississippi · 61340
Office
Unavailable
Facility
$1286.72
No comparable office rate is available.
Montana**
Montana · 61340
Office
Unavailable
Facility
$1427.34
No comparable office rate is available.
North Carolina
North Carolina · 61340
Office
Unavailable
Facility
$1294.80
No comparable office rate is available.
North Dakota**
North Dakota · 61340
Office
Unavailable
Facility
$1263.61
No comparable office rate is available.
Nebraska
Nebraska · 61340
Office
Unavailable
Facility
$1217.65
No comparable office rate is available.
New Hampshire
New Hampshire · 61340
Office
Unavailable
Facility
$1413.67
No comparable office rate is available.
Northern Nj
New Jersey · 61340
Office
Unavailable
Facility
$1567.37
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 61340
Office
Unavailable
Facility
$1526.58
No comparable office rate is available.
New Mexico
New Mexico · 61340
Office
Unavailable
Facility
$1442.28
No comparable office rate is available.
Nevada**
Nevada · 61340
Office
Unavailable
Facility
$1382.20
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 61340
Office
Unavailable
Facility
$1800.63
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 61340
Office
Unavailable
Facility
$1562.59
No comparable office rate is available.
Queens
New York · 61340
Office
Unavailable
Facility
$1682.38
No comparable office rate is available.
Rest Of New York
New York · 61340
Office
Unavailable
Facility
$1320.93
No comparable office rate is available.
Ohio
Ohio · 61340
Office
Unavailable
Facility
$1386.92
No comparable office rate is available.
Oklahoma
Oklahoma · 61340
Office
Unavailable
Facility
$1313.11
No comparable office rate is available.
Portland
Oregon · 61340
Office
Unavailable
Facility
$1422.66
No comparable office rate is available.
Rest Of Oregon
Oregon · 61340
Office
Unavailable
Facility
$1343.76
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 61340
Office
Unavailable
Facility
$1513.40
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 61340
Office
Unavailable
Facility
$1371.98
No comparable office rate is available.
Puerto Rico
Puerto Rico · 61340
Office
Unavailable
Facility
$1429.20
No comparable office rate is available.
Rhode Island
Rhode Island · 61340
Office
Unavailable
Facility
$1426.84
No comparable office rate is available.
South Carolina
South Carolina · 61340
Office
Unavailable
Facility
$1348.68
No comparable office rate is available.
South Dakota**
South Dakota · 61340
Office
Unavailable
Facility
$1244.25
No comparable office rate is available.
Tennessee
Tennessee · 61340
Office
Unavailable
Facility
$1254.67
No comparable office rate is available.
Austin
Texas · 61340
Office
Unavailable
Facility
$1426.46
No comparable office rate is available.
Beaumont
Texas · 61340
Office
Unavailable
Facility
$1363.58
No comparable office rate is available.
Brazoria
Texas · 61340
Office
Unavailable
Facility
$1367.82
No comparable office rate is available.
Dallas
Texas · 61340
Office
Unavailable
Facility
$1392.53
No comparable office rate is available.
Fort Worth
Texas · 61340
Office
Unavailable
Facility
$1391.16
No comparable office rate is available.
Galveston
Texas · 61340
Office
Unavailable
Facility
$1382.09
No comparable office rate is available.
Houston
Texas · 61340
Office
Unavailable
Facility
$1533.64
No comparable office rate is available.
Rest Of Texas
Texas · 61340
Office
Unavailable
Facility
$1375.75
No comparable office rate is available.
Utah
Utah · 61340
Office
Unavailable
Facility
$1369.90
No comparable office rate is available.
Virginia
Virginia · 61340
Office
Unavailable
Facility
$1338.14
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 61340
Office
Unavailable
Facility
$1429.20
No comparable office rate is available.
Vermont
Vermont · 61340
Office
Unavailable
Facility
$1286.30
No comparable office rate is available.
Rest Of Washington
Washington · 61340
Office
Unavailable
Facility
$1396.61
No comparable office rate is available.
Seattle (King Cnty)
Washington · 61340
Office
Unavailable
Facility
$1522.70
No comparable office rate is available.
Wisconsin
Wisconsin · 61340
Office
Unavailable
Facility
$1215.66
No comparable office rate is available.
West Virginia
West Virginia · 61340
Office
Unavailable
Facility
$1482.07
No comparable office rate is available.
Wyoming**
Wyoming · 61340
Office
Unavailable
Facility
$1355.98
No comparable office rate is available.
See how rates vary across the country
61340 · 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.
- 61340 in Chicago
Multiple payment areas
- 61340 in Alsip
- 61340 in Arlington Heights
- 61340 in Barrington
Multiple payment areas
- 61340 in Barrington Hills
Multiple payment areas
- 61340 in Bartlett
Multiple payment areas
- 61340 in Bedford Park
- 61340 in Bellwood
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 61340 in Chicago. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$1972.41
$1793.10 × 110% = $1972.41
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 61340 in Chicago.
PPRRVU2026_Oct_nonQPP.csv
6,770
- Code
- 61340
- Physician work
- 19.61
- Practice expense
- 14.86
- Malpractice
- 8.28
GPCI2026.csv
48
- Locality
- Chicago
- Physician work
- 1.007
- Practice expense
- 1.005
- Malpractice
- 2.295
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 19.61 | × 1.007 | 19.7473 |
| Practice expense | 14.86 | × 1.005 | 14.9343 |
| Malpractice | 8.28 | × 2.295 | 19.0026 |
| Total RVUs | 53.6842 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Chicago$1793.10
Open 61340 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 19.61 | 1.007 |
| Practice expense | 14.86 | 1.005 |
| Malpractice | 8.28 | 2.295 |
(19.61 × 1.007 + 14.86 × 1.005 + 8.28 × 2.295) × $33.4009 = $1793.10
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
61340 · 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 | $1793.10 | RVU26D |
| 2026-07-01 | Not available in this setting | $1793.10 | RVU26C |
| 2026-04-01 | Not available in this setting | $1793.10 | RVU26B |
| 2026-01-01 | Not available in this setting | $1793.10 | RVU26A |
| 2025-10-01 | Not available in this setting | $1718.69 | RVU25D |
| 2025-07-01 | Not available in this setting | $1718.69 | RVU25C |
| 2025-04-01 | Not available in this setting | $1718.69 | RVU25B |
| 2025-01-01 | Not available in this setting | $1718.69 | RVU25A |
61340 billing questions
How is this different from code 61322?
This code identifies a subtemporal approach. Code 61322 describes decompressive craniectomy without lobectomy; select based on the operation actually documented, not the general goal of relieving pressure.
How is this different from code 61323?
Code 61323 describes decompressive craniectomy with lobectomy. Use this code when the documented service is subtemporal decompression rather than a decompression that includes lobectomy.
What should the operative report establish?
The report should describe the subtemporal route, the reason for decompression, and the treated side or sides. It should make clear that the operation was not a decompression at another cranial location.
Can modifier 50 be reported for bilateral surgery?
Yes. CMS identifies this as a bilateral procedure; when performed bilaterally with modifier 50, it is paid at 150%.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
What postoperative care is included in the global period?
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 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.
