CPT code 42507: Parotid duct diversion, bilateral procedure2026 Medicare rate & RVUs in South Carolina
Reports bilateral redirection of parotid saliva, typically as surgery to manage severe drooling when the operative plan diverts both parotid ducts.
In South Carolina, Medicare pays $421.26 for 42507 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 42507 nationwide
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 11 sections
What 42507 covers
This operation redirects saliva from both parotid ducts, which carry saliva from the parotid glands into the mouth. Otolaryngologists and other surgeons who treat salivary-duct disorders may perform it, including in patients with severe drooling for whom the treatment plan redirects salivary flow. The operative report should identify the ducts treated and describe the diversion performed; a repair that restores a damaged duct is a different service.
Report this code when the documented operation includes bilateral parotid duct diversion. CMS prices the code as bilateral, so modifier 50 does not increase payment. It has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Assistant-at-surgery payment may be allowed; co-surgeons and team surgery are not permitted.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
How South Carolina compares for 42507
Across 109 of 109 payment localities, the facility rate for 42507 runs from $397.75 in Arkansas to $543.47 in Alaska. South Carolina pays $421.26. The RVUs are the same everywhere; the geographic indexes change the dollars.
- South Carolina · this page$421.26
- Los Angeles, CA · California$478.05+$56.79
- Washington, DC area · District of Columbia$493.00+$71.74
- Miami, FL · Florida$495.56+$74.30
- Chicago, IL · Illinois$482.52+$61.26
- Manhattan, NY · New York$505.76+$84.50
- Alaska · Alaska$543.47+$122.21
Other areas in South Carolina first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $402.61 |
| ArkansasArkansas | — | $397.75 |
| ArizonaArizona | — | $430.82 |
| Bakersfield, CACalifornia | — | $453.81 |
| Chico, CACalifornia | — | $451.23 |
| El Centro, CACalifornia | — | $451.38 |
| Fresno, CACalifornia | — | $451.23 |
| Hanford, CACalifornia | — | $451.23 |
| Madera, CACalifornia | — | $451.23 |
| Merced, CACalifornia | — | $451.23 |
| Modesto, CACalifornia | — | $451.23 |
| Napa, CACalifornia | — | $506.03 |
| Oxnard, CACalifornia | — | $473.98 |
| Redding, CACalifornia | — | $451.23 |
| Rest of CaliforniaCalifornia | — | $451.23 |
| Riverside, CACalifornia | — | $460.86 |
| Sacramento, CACalifornia | — | $469.06 |
| Salinas, CACalifornia | — | $467.21 |
| San Diego, CACalifornia | — | $474.90 |
| Marin County, CACalifornia | — | $530.25 |
| San Francisco, CACalifornia | — | $529.24 |
| San Benito County, CACalifornia | — | $542.26 |
| Santa Clara County, CACalifornia | — | $538.13 |
| San Luis Obispo, CACalifornia | — | $460.20 |
| Santa Cruz, CACalifornia | — | $476.85 |
| Santa Maria, CACalifornia | — | $468.06 |
| Santa Rosa, CACalifornia | — | $481.39 |
| Stockton, CACalifornia | — | $451.23 |
| Vallejo, CACalifornia | — | $504.57 |
| Visalia, CACalifornia | — | $451.23 |
| Yuba City, CACalifornia | — | $451.23 |
| ColoradoColorado | — | $450.83 |
| ConnecticutConnecticut | — | $467.92 |
| DelawareDelaware | — | $437.07 |
| Fort Lauderdale, FLFlorida | — | $468.29 |
| Rest of FloridaFlorida | — | $447.34 |
| Atlanta, GAGeorgia | — | $451.48 |
| Rest of GeorgiaGeorgia | — | $424.76 |
| Hawaii, Guam, HIHawaii | — | $457.60 |
| IowaIowa | — | $405.92 |
| IdahoIdaho | — | $409.22 |
| East St. Louis, ILIllinois | — | $455.03 |
| Rest of IllinoisIllinois | — | $440.16 |
| Suburban Chicago, ILIllinois | — | $471.56 |
| IndianaIndiana | — | $411.07 |
| KansasKansas | — | $406.81 |
| KentuckyKentucky | — | $415.90 |
| New Orleans, LALouisiana | — | $433.31 |
| Rest of LouisianaLouisiana | — | $416.34 |
| Metropolitan Boston, MAMassachusetts | — | $487.06 |
| Rest of MassachusettsMassachusetts | — | $449.83 |
| Baltimore area, MDMaryland | — | $467.07 |
| Rest of MarylandMaryland | — | $443.66 |
| Rest of MaineMaine | — | $413.65 |
| Southern Maine, MEMaine | — | $428.71 |
| Detroit, MIMichigan | — | $454.66 |
| Rest of MichiganMichigan | — | $427.26 |
| MinnesotaMinnesota | — | $426.68 |
| Metropolitan Kansas City, MOMissouri | — | $428.16 |
| Metropolitan St. Louis, MOMissouri | — | $431.62 |
| Rest of MissouriMissouri | — | $412.02 |
| MississippiMississippi | — | $404.83 |
| MontanaMontana | — | $441.50 |
| North CarolinaNorth Carolina | — | $416.86 |
| North DakotaNorth Dakota | — | $423.90 |
| NebraskaNebraska | — | $407.02 |
| New HampshireNew Hampshire | — | $446.39 |
| Northern New JerseyNew Jersey | — | $489.74 |
| Rest of New JerseyNew Jersey | — | $471.75 |
| New MexicoNew Mexico | — | $430.24 |
| NevadaNevada | — | $436.80 |
| NYC suburbs and Long Island, NYNew York | — | $519.45 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $476.76 |
| Queens, NYNew York | — | $505.65 |
| Rest of New YorkNew York | — | $422.31 |
| OhioOhio | — | $423.67 |
| OklahomaOklahoma | — | $412.63 |
| Portland, OROregon | — | $460.34 |
| Rest of OregonOregon | — | $431.90 |
| Metropolitan Philadelphia, PAPennsylvania | — | $459.50 |
| Rest of PennsylvaniaPennsylvania | — | $422.83 |
| Puerto RicoPuerto Rico | — | $443.41 |
| Rhode IslandRhode Island | — | $449.09 |
| South DakotaSouth Dakota | — | $421.82 |
| TennesseeTennessee | — | $408.83 |
| Austin, TXTexas | — | $450.67 |
| Beaumont, TXTexas | — | $420.69 |
| Brazoria, TXTexas | — | $434.77 |
| Dallas, TXTexas | — | $438.34 |
| Fort Worth, TXTexas | — | $436.64 |
| Galveston, TXTexas | — | $436.62 |
| Houston, TXTexas | — | $452.91 |
| Rest of TexasTexas | — | $428.05 |
| UtahUtah | — | $426.02 |
| VirginiaVirginia | — | $429.28 |
| Virgin Islands, VIUnited States Virgin Islands | — | $443.41 |
| VermontVermont | — | $424.79 |
| Rest of WashingtonWashington | — | $448.15 |
| King County, WAWashington | — | $493.60 |
| WisconsinWisconsin | — | $412.24 |
| West VirginiaWest Virginia | — | $427.07 |
| WyomingWyoming | — | $433.83 |
42507 rates by state
Office rate range in each state. Select a state to see its payment localities.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
View every state and territory as a table
| State / territory | Office 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 |
How the 42507 rate is calculated
Each of 42507’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 42507
RVUs × geographic indexes × conversion factor
Work6.09
6.09 RVUs× 1.000 GPCI
Practice expense6.24
6.24 RVUs× 1.000 GPCI
Malpractice0.89
0.89 RVUs× 1.000 GPCI
Adjusted RVUs
13.2200
Conversion factor
$33.4009
Medicare rate
$441.56
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact South Carolina inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
5,044
- Code
- 42507
- Physician work
- 6.09
- Practice expense
- 6.24
- Malpractice
- 0.89
GPCI2026.csv
93
- Locality
- South Carolina
- Physician work
- 1.000
- Practice expense
- 0.924
- Malpractice
- 0.850
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 6.09 | × 1.000 | 6.0900 |
| Practice expense | 6.24 | × 0.924 | 5.7658 |
| Malpractice | 0.89 | × 0.850 | 0.7565 |
| Total RVUs | 12.6123 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, South Carolina$421.26
Facility: (6.09 × 1 + 6.24 × 0.924 + 0.89 × 0.85) × $33.4009 = $421.26
Payment rules and modifiers for 42507
42507 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 42507
Parotid duct diversion, bilateral procedure
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 2 | Already bilateral by definition: paid once at 100%. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.81/0.10 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 42507
Parotid duct diversion, bilateral procedure
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
42507 without 51 · national facility
$441.56
Parotid duct diversion, bilateral procedure
42507-51 · Second procedure: 50%
$220.78
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
How 42507 has changed in South Carolina
42507 · 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
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $421.26 | RVU26D |
| 2026-07-01 | Not available in this setting | $421.26 | RVU26C |
| 2026-04-01 | Not available in this setting | $421.26 | RVU26B |
| 2026-01-01 | Not available in this setting | $421.26 | RVU26A |
| 2025-10-01 | Not available in this setting | $455.45 | RVU25D |
| 2025-07-01 | Not available in this setting | $455.45 | RVU25C |
| 2025-04-01 | Not available in this setting | $455.45 | RVU25B |
| 2025-01-01 | Not available in this setting | $455.45 | RVU25A |
| 2024-10-01 | Not available in this setting | $470.42 | RVU24D |
| 2024-07-01 | Not available in this setting | $470.42 | RVU24C |
| 2024-04-01 | Not available in this setting | $470.42 | RVU24B |
| 2024-03-09 | Not available in this setting | $470.42 | RVU24AR |
| 2024-01-01 | Not available in this setting | $462.75 | RVU24A |
| 2023-10-01 | Not available in this setting | $474.29 | RVU23D |
| 2023-07-01 | Not available in this setting | $474.29 | RVU23C |
| 2023-04-01 | Not available in this setting | $474.29 | RVU23B |
| 2023-01-01 | Not available in this setting | $474.29 | RVU23A |
| 2022-10-01 | Not available in this setting | $474.88 | RVU22D |
| 2022-07-01 | Not available in this setting | $474.88 | RVU22C |
| 2022-04-01 | Not available in this setting | $474.88 | RVU22B |
| 2022-01-01 | Not available in this setting | $474.88 | RVU22A |
| 2021-10-01 | Not available in this setting | $478.72 | RVU21D |
| 2021-07-01 | Not available in this setting | $478.72 | RVU21C |
| 2021-04-01 | Not available in this setting | $478.72 | RVU21B |
| 2021-01-01 | Not available in this setting | $478.72 | RVU21A |
| 2020-10-01 | Not available in this setting | $479.07 | RVU20D |
| 2020-07-01 | Not available in this setting | $479.07 | RVU20C |
| 2020-04-01 | Not available in this setting | $479.07 | RVU20B |
| 2020-01-01 | Not available in this setting | $479.07 | RVU20A |
| 2019-10-01 | Not available in this setting | $484.43 | RVU19D |
| 2019-07-01 | Not available in this setting | $484.43 | RVU19C |
| 2019-04-01 | Not available in this setting | $484.43 | RVU19B |
| 2019-01-01 | Not available in this setting | $484.43 | RVU19A |
| 2018-10-01 | Not available in this setting | $486.65 | RVU18D |
| 2018-07-01 | Not available in this setting | $486.65 | RVU18C |
| 2018-04-01 | Not available in this setting | $486.65 | RVU18B |
| 2018-01-01 | Not available in this setting | $486.65 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $484.92 | RVU17D |
| 2017-07-01 | Not available in this setting | $484.92 | RVU17C |
| 2017-04-01 | Not available in this setting | $484.92 | RVU17B |
| 2017-01-01 | Not available in this setting | $484.92 | RVU17A |
| 2016-10-01 | Not available in this setting | $503.17 | RVU16D |
| 2016-07-01 | Not available in this setting | $503.17 | RVU16C |
| 2016-04-01 | Not available in this setting | $503.17 | RVU16B |
| 2016-01-01 | Not available in this setting | $503.17 | RVU16A |
| 2015-10-01 | Not available in this setting | $500.56 | RVU15D |
| 2015-07-01 | Not available in this setting | $500.56 | RVU15C |
| 2015-04-01 | Not available in this setting | $498.07 | RVU15B |
| 2015-01-01 | Not available in this setting | $498.07 | RVU15A |
| 2014-10-01 | Not available in this setting | $498.10 | RVU14D |
| 2014-07-01 | Not available in this setting | $498.10 | RVU14C |
| 2014-04-01 | Not available in this setting | $498.10 | RVU14B |
| 2014-01-01 | Not available in this setting | $498.10 | RVU14A |
| 2013-10-01 | Not available in this setting | $495.55 | RVU13D |
| 2013-07-01 | Not available in this setting | $495.55 | RVU13C |
| 2013-04-01 | Not available in this setting | $495.55 | RVU13B |
| 2013-01-01 | Not available in this setting | $495.55 | RVU13AR |
Where the South Carolina rate applies
South Carolina is a Medicare payment area, not a city. Our Census mapping connects it to 475 cities and communities in South Carolina. Some span more than one payment area; confirm with the service ZIP.
- Abbeville
- Abney Crossroads
- Adams Run
- Aiken
- Alcolu
- Allendale
- Anderson
- Andrews
42507 billing questions
When should this code be selected instead of a parotid duct repair code?
Use this code for documented diversion of both parotid ducts. Codes 42500 and 42505 describe duct repair, not intentional redirection of salivary flow.
Should modifier 50 be appended?
No. CMS prices this code as bilateral, and modifier 50 does not increase payment.
What documentation supports reporting the bilateral service?
The operative report should identify treatment of both parotid ducts and describe the diversion performed. Documentation of only one duct does not support the bilateral service.
How does the 90-day global period affect postoperative reporting?
The day-before preoperative visit and 90 days of related postoperative care are included in the global period.
Can another procedure performed in the same session be separately paid?
Other procedures may be reported when independently supported, but CMS applies the standard multiple-procedure reduction: the highest-valued procedure is paid in full and others at 50%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be allowed. Co-surgeons and team surgery are not permitted for this code.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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