Choose 49425 when inserting a new peritoneovenous shunt. Choose 49427 when injecting and assessing a shunt that is already present.
On this page
CMS RVU26D · Effective 2026-10-01
49427 in Redding
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$34.45
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.
Abdominal shunt procedure
About 49427: Peritoneovenous shunt injection and assessment
Reports injection of an existing peritoneovenous shunt to evaluate its function, commonly when a patient with ascites has suspected shunt obstruction or malfunction.
This service evaluates an existing peritoneovenous shunt, such as a LeVeen shunt, by injecting contrast into the shunt and assessing its flow. It may be performed by an interventional radiologist or surgeon for a patient with ascites when clinical findings raise concern about shunt patency or function. The procedure is distinct from placing, revising, ligating, or removing the shunt.
Report 49427 for the injection and assessment, supported by documentation identifying the shunt, the reason for evaluation, the access and injection performed, and the findings. The CMS global period is 0 days, so same-day preoperative and postoperative care is included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple procedure reduction. Bilateral adjustment is inappropriate for this service. Assistant-at-surgery payment requires documentation of medical necessity; co-surgeons and team surgery are not permitted.
CMS billing rules for 49427
- 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
- Assistant at surgery is paid only with documentation of medical necessity.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU0.87 · 82%
- Practice expense (office) RVU0.08 · 8%
- Malpractice RVU0.11 · 10%
29
Medicare services in 2024 · #5689 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.
49427 compared with similar codes
Office rates for Redding, from the same CMS release.
Choose 49426 for operative revision of the shunt. Choose 49427 for injection and evaluation without shunt revision.
49428 describes ligating the shunt; 49427 describes injecting it to assess function.
49429 describes shunt removal. It is not the code for injection and assessment of a shunt that remains in place.
The same code, a different location
How does Redding compare?
49427 across payment areas
Same release and payment basis · bars start at $0
Redding · 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 · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
Merced
California · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
Modesto
California · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
Napa
California · 49427
Office
Unavailable
Facility
$36.28
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 49427
Office
Unavailable
Facility
$35.32
No comparable office rate is available.
Rest Of California
California · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 49427
Office
Unavailable
Facility
$35.64
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 49427
Office
Unavailable
Facility
$35.18
No comparable office rate is available.
Salinas
California · 49427
Office
Unavailable
Facility
$35.03
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 49427
Office
Unavailable
Facility
$35.12
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 49427
Office
Unavailable
Facility
$37.27
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 49427
Office
Unavailable
Facility
$37.15
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 49427
Office
Unavailable
Facility
$38.08
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 49427
Office
Unavailable
Facility
$37.57
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 49427
Office
Unavailable
Facility
$34.57
No comparable office rate is available.
Santa Cruz-Watsonville
California · 49427
Office
Unavailable
Facility
$34.88
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 49427
Office
Unavailable
Facility
$34.96
No comparable office rate is available.
Santa Rosa-Petaluma
California · 49427
Office
Unavailable
Facility
$35.18
No comparable office rate is available.
Stockton
California · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
Vallejo
California · 49427
Office
Unavailable
Facility
$36.10
No comparable office rate is available.
Visalia
California · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
Yuba City
California · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 49427
Office
Unavailable
Facility
$37.86
No comparable office rate is available.
Miami
Florida · 49427
Office
Unavailable
Facility
$41.13
No comparable office rate is available.
Chicago
Illinois · 49427
Office
Unavailable
Facility
$40.38
No comparable office rate is available.
Manhattan
New York · 49427
Office
Unavailable
Facility
$39.85
No comparable office rate is available.
Alaska*
Alaska · 49427
Office
Unavailable
Facility
$48.46
No comparable office rate is available.
Alabama
Alabama · 49427
Office
Unavailable
Facility
$33.48
No comparable office rate is available.
Arkansas
Arkansas · 49427
Office
Unavailable
Facility
$33.25
No comparable office rate is available.
Arizona
Arizona · 49427
Office
Unavailable
Facility
$34.79
No comparable office rate is available.
Colorado
Colorado · 49427
Office
Unavailable
Facility
$35.12
No comparable office rate is available.
Connecticut
Connecticut · 49427
Office
Unavailable
Facility
$36.96
No comparable office rate is available.
Delaware
Delaware · 49427
Office
Unavailable
Facility
$35.15
No comparable office rate is available.
Fort Lauderdale
Florida · 49427
Office
Unavailable
Facility
$38.41
No comparable office rate is available.
Rest Of Florida
Florida · 49427
Office
Unavailable
Facility
$37.14
No comparable office rate is available.
Atlanta
Georgia · 49427
Office
Unavailable
Facility
$36.27
No comparable office rate is available.
Rest Of Georgia
Georgia · 49427
Office
Unavailable
Facility
$35.82
No comparable office rate is available.
Hawaii, Guam
Hawaii · 49427
Office
Unavailable
Facility
$34.22
No comparable office rate is available.
Iowa
Iowa · 49427
Office
Unavailable
Facility
$32.96
No comparable office rate is available.
Idaho
Idaho · 49427
Office
Unavailable
Facility
$33.25
No comparable office rate is available.
East St. Louis
Illinois · 49427
Office
Unavailable
Facility
$38.92
No comparable office rate is available.
Rest Of Illinois
Illinois · 49427
Office
Unavailable
Facility
$37.24
No comparable office rate is available.
Suburban Chicago
Illinois · 49427
Office
Unavailable
Facility
$38.52
No comparable office rate is available.
Indiana
Indiana · 49427
Office
Unavailable
Facility
$33.32
No comparable office rate is available.
Kansas
Kansas · 49427
Office
Unavailable
Facility
$33.33
No comparable office rate is available.
Kentucky
Kentucky · 49427
Office
Unavailable
Facility
$34.80
No comparable office rate is available.
New Orleans
Louisiana · 49427
Office
Unavailable
Facility
$35.75
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 49427
Office
Unavailable
Facility
$34.94
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 49427
Office
Unavailable
Facility
$36.71
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 49427
Office
Unavailable
Facility
$35.27
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 49427
Office
Unavailable
Facility
$36.94
No comparable office rate is available.
Rest Of Maryland
Maryland · 49427
Office
Unavailable
Facility
$35.43
No comparable office rate is available.
Rest Of Maine
Maine · 49427
Office
Unavailable
Facility
$33.80
No comparable office rate is available.
Southern Maine
Maine · 49427
Office
Unavailable
Facility
$34.03
No comparable office rate is available.
Detroit
Michigan · 49427
Office
Unavailable
Facility
$37.83
No comparable office rate is available.
Rest Of Michigan
Michigan · 49427
Office
Unavailable
Facility
$35.65
No comparable office rate is available.
Minnesota
Minnesota · 49427
Office
Unavailable
Facility
$32.90
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 49427
Office
Unavailable
Facility
$35.16
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 49427
Office
Unavailable
Facility
$35.28
No comparable office rate is available.
Rest Of Missouri
Missouri · 49427
Office
Unavailable
Facility
$34.94
No comparable office rate is available.
Mississippi
Mississippi · 49427
Office
Unavailable
Facility
$34.07
No comparable office rate is available.
Montana**
Montana · 49427
Office
Unavailable
Facility
$35.40
No comparable office rate is available.
North Carolina
North Carolina · 49427
Office
Unavailable
Facility
$33.90
No comparable office rate is available.
North Dakota**
North Dakota · 49427
Office
Unavailable
Facility
$33.22
No comparable office rate is available.
Nebraska
Nebraska · 49427
Office
Unavailable
Facility
$32.91
No comparable office rate is available.
New Hampshire
New Hampshire · 49427
Office
Unavailable
Facility
$35.06
No comparable office rate is available.
Northern Nj
New Jersey · 49427
Office
Unavailable
Facility
$37.91
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 49427
Office
Unavailable
Facility
$37.17
No comparable office rate is available.
New Mexico
New Mexico · 49427
Office
Unavailable
Facility
$35.92
No comparable office rate is available.
Nevada**
Nevada · 49427
Office
Unavailable
Facility
$34.79
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 49427
Office
Unavailable
Facility
$40.92
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 49427
Office
Unavailable
Facility
$37.74
No comparable office rate is available.
Queens
New York · 49427
Office
Unavailable
Facility
$39.37
No comparable office rate is available.
Rest Of New York
New York · 49427
Office
Unavailable
Facility
$34.18
No comparable office rate is available.
Ohio
Ohio · 49427
Office
Unavailable
Facility
$35.20
No comparable office rate is available.
Oklahoma
Oklahoma · 49427
Office
Unavailable
Facility
$34.30
No comparable office rate is available.
Portland
Oregon · 49427
Office
Unavailable
Facility
$35.23
No comparable office rate is available.
Rest Of Oregon
Oregon · 49427
Office
Unavailable
Facility
$34.30
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 49427
Office
Unavailable
Facility
$36.75
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 49427
Office
Unavailable
Facility
$34.98
No comparable office rate is available.
Puerto Rico
Puerto Rico · 49427
Office
Unavailable
Facility
$35.38
No comparable office rate is available.
Rhode Island
Rhode Island · 49427
Office
Unavailable
Facility
$35.65
No comparable office rate is available.
South Carolina
South Carolina · 49427
Office
Unavailable
Facility
$34.65
No comparable office rate is available.
South Dakota**
South Dakota · 49427
Office
Unavailable
Facility
$32.97
No comparable office rate is available.
Tennessee
Tennessee · 49427
Office
Unavailable
Facility
$33.46
No comparable office rate is available.
Austin
Texas · 49427
Office
Unavailable
Facility
$35.20
No comparable office rate is available.
Beaumont
Texas · 49427
Office
Unavailable
Facility
$34.90
No comparable office rate is available.
Brazoria
Texas · 49427
Office
Unavailable
Facility
$34.81
No comparable office rate is available.
Dallas
Texas · 49427
Office
Unavailable
Facility
$35.13
No comparable office rate is available.
Fort Worth
Texas · 49427
Office
Unavailable
Facility
$35.16
No comparable office rate is available.
Galveston
Texas · 49427
Office
Unavailable
Facility
$34.99
No comparable office rate is available.
Houston
Texas · 49427
Office
Unavailable
Facility
$37.00
No comparable office rate is available.
Rest Of Texas
Texas · 49427
Office
Unavailable
Facility
$34.91
No comparable office rate is available.
Utah
Utah · 49427
Office
Unavailable
Facility
$34.87
No comparable office rate is available.
Virginia
Virginia · 49427
Office
Unavailable
Facility
$34.28
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 49427
Office
Unavailable
Facility
$35.38
No comparable office rate is available.
Vermont
Vermont · 49427
Office
Unavailable
Facility
$33.56
No comparable office rate is available.
Rest Of Washington
Washington · 49427
Office
Unavailable
Facility
$35.05
No comparable office rate is available.
Seattle (King Cnty)
Washington · 49427
Office
Unavailable
Facility
$36.79
No comparable office rate is available.
Wisconsin
Wisconsin · 49427
Office
Unavailable
Facility
$32.75
No comparable office rate is available.
West Virginia
West Virginia · 49427
Office
Unavailable
Facility
$36.64
No comparable office rate is available.
Wyoming**
Wyoming · 49427
Office
Unavailable
Facility
$34.45
No comparable office rate is available.
See how rates vary across the country
49427 · 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?
Redding is a Medicare payment area. Our Census mapping connects it to 32 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 49427 in Redding. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$37.90
$34.45 × 110% = $37.90
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 49427 in Redding.
PPRRVU2026_Oct_nonQPP.csv
5,807
- Code
- 49427
- Physician work
- 0.87
- Practice expense
- 0.08
- Malpractice
- 0.11
GPCI2026.csv
19
- Locality
- Redding
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.87 | × 1.017 | 0.8848 |
| Practice expense | 0.08 | × 1.096 | 0.0877 |
| Malpractice | 0.11 | × 0.536 | 0.0590 |
| Total RVUs | 1.0314 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Redding$34.45
Open 49427 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.87 | 1.017 |
| Practice expense | 0.08 | 1.096 |
| Malpractice | 0.11 | 0.536 |
(0.87 × 1.017 + 0.08 × 1.096 + 0.11 × 0.536) × $33.4009 = $34.45
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
49427 · 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 | $34.45 | RVU26D |
| 2026-07-01 | Not available in this setting | $34.45 | RVU26C |
| 2026-04-01 | Not available in this setting | $34.45 | RVU26B |
| 2026-01-01 | Not available in this setting | $34.45 | RVU26A |
| 2025-10-01 | Not available in this setting | $37.02 | RVU25D |
| 2025-07-01 | Not available in this setting | $37.02 | RVU25C |
| 2025-04-01 | Not available in this setting | $37.02 | RVU25B |
| 2025-01-01 | Not available in this setting | $37.02 | RVU25A |
49427 billing questions
When should 49427 be selected instead of 49426?
Use 49427 for injection and assessment of an existing shunt. Use 49426 when the shunt itself is revised.
Is 49427 used to place a new peritoneovenous shunt?
No. Placement is reported with 49425; 49427 describes injection and assessment of an existing shunt.
Can 49427 be reported with shunt revision during the same session?
If injection and assessment are performed along with a revision, document the distinct work and follow applicable coding edits. CMS applies the standard multiple procedure reduction when multiple procedures are performed in the same session.
Does 49427 have a global period?
It has a 0-day global period. Same-day preoperative and postoperative care is included.
Can modifier 50 be used for 49427?
No. Bilateral adjustment is inappropriate for this service.
When is assistant-at-surgery payment allowed?
CMS allows assistant-at-surgery payment only when medical necessity is documented. Co-surgeons and team surgery are 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.
