CPT code 43757: Duodenal aspiration, multiple specimens2026 Medicare rate & RVUs in Tennessee
Reports diagnostic collection of multiple aspirate specimens from the duodenum by intubation, such as sampling contents for laboratory analysis.
In Tennessee, Medicare pays $372.71 for 43757 in the office and $65.76 when it’s performed in a hospital or facility.
Check a contract rate as a % of Medicare · 43757 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 43757 covers
A clinician advances an intubation tube into the duodenum and collects multiple aspirate specimens for diagnostic testing. Gastroenterologists and other physicians performing gastrointestinal diagnostic procedures may use this service when duodenal contents need laboratory assessment, including evaluation for suspected small-intestinal bacterial overgrowth. The service involves aspiration of duodenal contents rather than tissue sampling by biopsy.
Select this code when the documented procedure collects multiple diagnostic specimens from the duodenum; a single-specimen collection is represented by 43756. The record should identify the duodenal sampling site, diagnostic purpose, and collection of multiple specimens. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. An assistant at surgery may be paid; co-surgeons and team surgery are not permitted. Modifier 50 is inappropriate for this service.
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 Tennessee compares for 43757
Across 109 of 109 payment localities, the office rate for 43757 runs from $354.51 in Arkansas to $570.21 in San Benito County, CA. Tennessee pays $372.71. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Tennessee · this page$372.71
- Los Angeles, CA · California$474.20+$101.49
- Washington, DC area · District of Columbia$475.02+$102.31
- Miami, FL · Florida$429.82+$57.11
- Chicago, IL · Illinois$415.98+$43.27
- Manhattan, NY · New York$471.85+$99.14
- Alaska · Alaska$449.80+$77.09
Other areas in Tennessee first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | $360.54 | $65.06 |
| ArkansasArkansas | $354.51 | $64.44 |
| ArizonaArizona | $395.93 | $68.71 |
| Bakersfield, CACalifornia | $441.54 | $71.43 |
| Chico, CACalifornia | $441.11 | $71.01 |
| El Centro, CACalifornia | $441.14 | $71.03 |
| Fresno, CACalifornia | $441.11 | $71.01 |
| Hanford, CACalifornia | $441.11 | $71.01 |
| Madera, CACalifornia | $441.11 | $71.01 |
| Merced, CACalifornia | $441.11 | $71.01 |
| Modesto, CACalifornia | $441.11 | $71.01 |
| Napa, CACalifornia | $523.25 | $78.18 |
| Oxnard, CACalifornia | $473.11 | $73.97 |
| Redding, CACalifornia | $441.11 | $71.01 |
| Rest of CaliforniaCalifornia | $441.11 | $71.01 |
| Riverside, CACalifornia | $442.64 | $72.53 |
| Sacramento, CACalifornia | $466.15 | $73.43 |
| Salinas, CACalifornia | $464.50 | $73.12 |
| San Diego, CACalifornia | $477.88 | $74.01 |
| Marin County, CACalifornia | $557.65 | $81.51 |
| San Francisco, CACalifornia | $557.49 | $81.35 |
| San Benito County, CACalifornia | $570.21 | $83.27 |
| Santa Clara County, CACalifornia | $569.56 | $82.62 |
| San Luis Obispo, CACalifornia | $456.68 | $72.06 |
| Santa Cruz, CACalifornia | $484.36 | $74.08 |
| Santa Maria, CACalifornia | $466.91 | $73.17 |
| Santa Rosa, CACalifornia | $489.44 | $74.76 |
| Stockton, CACalifornia | $441.11 | $71.01 |
| Vallejo, CACalifornia | $523.02 | $77.95 |
| Visalia, CACalifornia | $441.11 | $71.01 |
| Yuba City, CACalifornia | $441.11 | $71.01 |
| ColoradoColorado | $430.47 | $71.17 |
| ConnecticutConnecticut | $437.51 | $73.82 |
| DelawareDelaware | $403.21 | $69.58 |
| Fort Lauderdale, FLFlorida | $416.31 | $74.24 |
| Rest of FloridaFlorida | $394.25 | $71.42 |
| Atlanta, GAGeorgia | $414.68 | $71.60 |
| Rest of GeorgiaGeorgia | $369.62 | $68.41 |
| Hawaii, Guam, HIHawaii | $455.46 | $71.51 |
| IowaIowa | $374.23 | $65.25 |
| IdahoIdaho | $376.40 | $65.73 |
| East St. Louis, ILIllinois | $383.60 | $72.93 |
| Rest of IllinoisIllinois | $378.96 | $70.65 |
| Suburban Chicago, ILIllinois | $421.50 | $74.70 |
| IndianaIndiana | $378.99 | $65.96 |
| KansasKansas | $370.75 | $65.48 |
| KentuckyKentucky | $367.24 | $67.04 |
| New Orleans, LALouisiana | $387.10 | $69.34 |
| Rest of LouisianaLouisiana | $365.99 | $67.14 |
| Metropolitan Boston, MAMassachusetts | $479.24 | $76.04 |
| Rest of MassachusettsMassachusetts | $426.72 | $71.14 |
| Baltimore area, MDMaryland | $436.02 | $73.69 |
| Rest of MarylandMaryland | $412.20 | $70.46 |
| Rest of MaineMaine | $377.09 | $66.42 |
| Southern Maine, MEMaine | $402.84 | $68.20 |
| Detroit, MIMichigan | $398.36 | $72.50 |
| Rest of MichiganMichigan | $376.93 | $68.62 |
| MinnesotaMinnesota | $415.03 | $67.56 |
| Metropolitan Kansas City, MOMissouri | $385.63 | $68.55 |
| Metropolitan St. Louis, MOMissouri | $390.46 | $68.98 |
| Rest of MissouriMissouri | $357.74 | $66.66 |
| MississippiMississippi | $356.28 | $65.53 |
| MontanaMontana | $407.82 | $70.13 |
| North CarolinaNorth Carolina | $381.88 | $66.82 |
| North DakotaNorth Dakota | $405.05 | $67.36 |
| NebraskaNebraska | $377.04 | $65.36 |
| New HampshireNew Hampshire | $422.09 | $70.56 |
| Northern New JerseyNew Jersey | $468.66 | $76.95 |
| Rest of New JerseyNew Jersey | $443.23 | $74.48 |
| New MexicoNew Mexico | $378.71 | $69.06 |
| NevadaNevada | $407.41 | $69.39 |
| NYC suburbs and Long Island, NYNew York | $482.89 | $81.39 |
| Poughkeepsie and northern NYC suburbs, NYNew York | $445.05 | $75.29 |
| Queens, NYNew York | $478.42 | $79.28 |
| Rest of New YorkNew York | $388.33 | $67.53 |
| OhioOhio | $376.36 | $68.06 |
| OklahomaOklahoma | $368.04 | $66.49 |
| Portland, OROregon | $447.47 | $72.31 |
| Rest of OregonOregon | $404.99 | $68.66 |
| Metropolitan Philadelphia, PAPennsylvania | $424.31 | $72.78 |
| Rest of PennsylvaniaPennsylvania | $377.88 | $67.89 |
| Puerto RicoPuerto Rico | $411.74 | $70.34 |
| Rhode IslandRhode Island | $420.05 | $71.22 |
| South CarolinaSouth Carolina | $379.61 | $67.59 |
| South DakotaSouth Dakota | $404.72 | $67.04 |
| Austin, TXTexas | $428.37 | $71.11 |
| Beaumont, TXTexas | $374.91 | $67.62 |
| Brazoria, TXTexas | $403.87 | $69.22 |
| Dallas, TXTexas | $406.08 | $69.75 |
| Fort Worth, TXTexas | $402.52 | $69.57 |
| Galveston, TXTexas | $404.81 | $69.50 |
| Houston, TXTexas | $407.38 | $72.06 |
| Rest of TexasTexas | $388.91 | $68.44 |
| UtahUtah | $385.62 | $68.20 |
| VirginiaVirginia | $400.30 | $68.35 |
| Virgin Islands, VIUnited States Virgin Islands | $411.74 | $70.34 |
| VermontVermont | $401.89 | $67.59 |
| Rest of WashingtonWashington | $426.43 | $70.85 |
| King County, WAWashington | $491.21 | $76.88 |
| WisconsinWisconsin | $389.38 | $65.88 |
| West VirginiaWest Virginia | $362.41 | $68.96 |
| WyomingWyoming | $406.61 | $68.93 |
43757 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.
$354.51
$505.66
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $449.80 | 1 |
| AL | $360.54 | 1 |
| AR | $354.51 | 1 |
| AZ | $395.93 | 1 |
| CA | $441.11–$570.21 | 29 |
| CO | $430.47 | 1 |
| CT | $437.51 | 1 |
| DC | $475.02 | 1 |
| DE | $403.21 | 1 |
| FL | $394.25–$429.82 | 3 |
| GA | $369.62–$414.68 | 2 |
| GU | $455.46 | 1 |
| HI | $455.46 | 1 |
| IA | $374.23 | 1 |
| ID | $376.40 | 1 |
| IL | $378.96–$421.50 | 4 |
| IN | $378.99 | 1 |
| KS | $370.75 | 1 |
| KY | $367.24 | 1 |
| LA | $365.99–$387.10 | 2 |
| MA | $426.72–$479.24 | 2 |
| MD | $412.20–$475.02 | 3 |
| ME | $377.09–$402.84 | 2 |
| MI | $376.93–$398.36 | 2 |
| MN | $415.03 | 1 |
| MO | $357.74–$390.46 | 3 |
| MS | $356.28 | 1 |
| MT | $407.82 | 1 |
| NC | $381.88 | 1 |
| ND | $405.05 | 1 |
| NE | $377.04 | 1 |
| NH | $422.09 | 1 |
| NJ | $443.23–$468.66 | 2 |
| NM | $378.71 | 1 |
| NV | $407.41 | 1 |
| NY | $388.33–$482.89 | 5 |
| OH | $376.36 | 1 |
| OK | $368.04 | 1 |
| OR | $404.99–$447.47 | 2 |
| PA | $377.88–$424.31 | 2 |
| PR | $411.74 | 1 |
| RI | $420.05 | 1 |
| SC | $379.61 | 1 |
| SD | $404.72 | 1 |
| TN | $372.71 | 1 |
| TX | $374.91–$428.37 | 8 |
| UT | $385.62 | 1 |
| VA | $400.30–$475.02 | 2 |
| VI | $411.74 | 1 |
| VT | $401.89 | 1 |
| WA | $426.43–$491.21 | 2 |
| WI | $389.38 | 1 |
| WV | $362.41 | 1 |
| WY | $406.61 | 1 |
How the 43757 rate is calculated
Each of 43757’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 · 43757
RVUs × geographic indexes × conversion factor
Work1.23
1.23 RVUs× 1.000 GPCI
Practice expense10.84
10.84 RVUs× 1.000 GPCI
Malpractice0.14
0.14 RVUs× 1.000 GPCI
Adjusted RVUs
12.2100
Conversion factor
$33.4009
Medicare rate
$407.82
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Tennessee inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
5,288
- Code
- 43757
- Physician work
- 1.23
- Practice expense
- 10.84
- Malpractice
- 0.14
GPCI2026.csv
95
- Locality
- Tennessee
- Physician work
- 1.000
- Practice expense
- 0.909
- Malpractice
- 0.537
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 1.23 | × 1.000 | 1.2300 |
| Practice expense | 10.84 | × 0.909 | 9.8536 |
| Malpractice | 0.14 | × 0.537 | 0.0752 |
| Total RVUs | 11.1587 | ||
| Conversion factor | × 33.4009 | ||
Office rate, Tennessee$372.71
Office: (1.23 × 1 + 10.84 × 0.909 + 0.14 × 0.537) × $33.4009 = $372.71
Facility: (1.23 × 1 + 0.73 × 0.909 + 0.14 × 0.537) × $33.4009 = $65.76
Payment rules and modifiers for 43757
The CMS indicators that decide how 43757 is paid alongside other services.
CMS payment indicators · 43757
Duodenal aspiration, multiple specimens
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 000 | Same-day global: pre- and post-op care on the day of the procedure is included. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| 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. |
What modifiers do to the payment
Modifier 80 · payment effect
With and without the modifier
43757 without 80 · national office
$407.82
Duodenal aspiration, multiple specimens
43757-80 · Assistant: 16%
$65.25
A physician assistant at surgery is paid 16% of the surgeon’s fee schedule amount.
How 43757 has changed in Tennessee
43757 · Office / nonfacility
$372.71
Effective 2026-10-01
The base rate is $61.05 higher than on 2025-10-01, moving from $311.66 to $372.71 (19.6%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
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
January 1, 2026
RVU26A
$311.66changed to$372.71
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 1.26 changed to 1.23
- Practice expense RVU 9.25 changed to 10.84
- Malpractice RVU 0.16 changed to 0.14
- Practice expense GPCI 0.896 changed to 0.909
- Malpractice GPCI 0.544 changed to 0.537
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$333.37changed to$311.66
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 9.68 changed to 9.25
- Malpractice RVU 0.15 changed to 0.16
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$327.93changed to$333.37
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$343.18changed to$327.93
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 9.82 changed to 9.68
- Malpractice RVU 0.17 changed to 0.15
- Practice expense GPCI 0.894 changed to 0.896
- Malpractice GPCI 0.518 changed to 0.544
January 1, 2023
RVU23A
$360.82changed to$343.18
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 10.21 changed to 9.82
- Malpractice RVU 0.12 changed to 0.17
- Practice expense GPCI 0.892 changed to 0.894
- Malpractice GPCI 0.492 changed to 0.518
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$353.57changed to$360.82
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 9.87 changed to 10.21
- Malpractice RVU 0.14 changed to 0.12
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$318.82changed to$353.57
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 8.37 changed to 9.87
- Malpractice RVU 0.13 changed to 0.14
- Practice expense GPCI 0.897 changed to 0.892
- Malpractice GPCI 0.509 changed to 0.492
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$297.17changed to$318.82
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 7.66 changed to 8.37
- Malpractice RVU 0.16 changed to 0.13
- Practice expense GPCI 0.901 changed to 0.897
- Malpractice GPCI 0.526 changed to 0.509
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$273.82changed to$297.17
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 6.95 changed to 7.66
Held through RVU19B, RVU19C, RVU19D.
April 1, 2018
RVU18B
No ratechanged to$273.82
Held through RVU18C, RVU18D.
January 1, 2013
RVU13AR
Earliest loaded release: No rate
Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $372.71 | $65.76 | RVU26D |
| 2026-07-01 | $372.71 | $65.76 | RVU26C |
| 2026-04-01 | $372.71 | $65.76 | RVU26B |
| 2026-01-01 | $372.71 | $65.76 | RVU26A |
| 2025-10-01 | $311.66 | $69.08 | RVU25D |
| 2025-07-01 | $311.66 | $69.08 | RVU25C |
| 2025-04-01 | $311.66 | $69.08 | RVU25B |
| 2025-01-01 | $311.66 | $69.08 | RVU25A |
| 2024-10-01 | $333.37 | $70.91 | RVU24D |
| 2024-07-01 | $333.37 | $70.91 | RVU24C |
| 2024-04-01 | $333.37 | $70.91 | RVU24B |
| 2024-03-09 | $333.37 | $70.91 | RVU24AR |
| 2024-01-01 | $327.93 | $69.75 | RVU24A |
| 2023-10-01 | $343.18 | $71.43 | RVU23D |
| 2023-07-01 | $343.18 | $71.43 | RVU23C |
| 2023-04-01 | $343.18 | $71.43 | RVU23B |
| 2023-01-01 | $343.18 | $71.43 | RVU23A |
| 2022-10-01 | $360.82 | $71.89 | RVU22D |
| 2022-07-01 | $360.82 | $71.89 | RVU22C |
| 2022-04-01 | $360.82 | $71.89 | RVU22B |
| 2022-01-01 | $360.82 | $71.89 | RVU22A |
| 2021-10-01 | $353.57 | $72.20 | RVU21D |
| 2021-07-01 | $353.57 | $72.20 | RVU21C |
| 2021-04-01 | $353.57 | $72.20 | RVU21B |
| 2021-01-01 | $353.57 | $72.20 | RVU21A |
| 2020-10-01 | $318.82 | $74.08 | RVU20D |
| 2020-07-01 | $318.82 | $74.08 | RVU20C |
| 2020-04-01 | $318.82 | $74.08 | RVU20B |
| 2020-01-01 | $318.82 | $74.08 | RVU20A |
| 2019-10-01 | $297.17 | $74.74 | RVU19D |
| 2019-07-01 | $297.17 | $74.74 | RVU19C |
| 2019-04-01 | $297.17 | $74.74 | RVU19B |
| 2019-01-01 | $297.17 | $74.74 | RVU19A |
| 2018-10-01 | $273.82 | $75.31 | RVU18D |
| 2018-07-01 | $273.82 | $75.31 | RVU18C |
| 2018-04-01 | $273.82 | $75.31 | RVU18B |
| 2018-01-01 | Rate data unavailable | Rate data unavailable | RVU18AR1 |
| 2017-10-01 | Rate data unavailable | Rate data unavailable | RVU17D |
| 2017-07-01 | Rate data unavailable | Rate data unavailable | RVU17C |
| 2017-04-01 | Rate data unavailable | Rate data unavailable | RVU17B |
| 2017-01-01 | Rate data unavailable | Rate data unavailable | RVU17A |
| 2016-10-01 | Rate data unavailable | Rate data unavailable | RVU16D |
| 2016-07-01 | Rate data unavailable | Rate data unavailable | RVU16C |
| 2016-04-01 | Rate data unavailable | Rate data unavailable | RVU16B |
| 2016-01-01 | Rate data unavailable | Rate data unavailable | RVU16A |
| 2015-10-01 | Rate data unavailable | Rate data unavailable | RVU15D |
| 2015-07-01 | Rate data unavailable | Rate data unavailable | RVU15C |
| 2015-04-01 | Rate data unavailable | Rate data unavailable | RVU15B |
| 2015-01-01 | Rate data unavailable | Rate data unavailable | RVU15A |
| 2014-10-01 | Rate data unavailable | Rate data unavailable | RVU14D |
| 2014-07-01 | Rate data unavailable | Rate data unavailable | RVU14C |
| 2014-04-01 | Rate data unavailable | Rate data unavailable | RVU14B |
| 2014-01-01 | Rate data unavailable | Rate data unavailable | RVU14A |
| 2013-10-01 | Rate data unavailable | Rate data unavailable | RVU13D |
| 2013-07-01 | Rate data unavailable | Rate data unavailable | RVU13C |
| 2013-04-01 | Rate data unavailable | Rate data unavailable | RVU13B |
| 2013-01-01 | Rate data unavailable | Rate data unavailable | RVU13AR |
Where the Tennessee rate applies
Tennessee is a Medicare payment area, not a city. Our Census mapping connects it to 504 cities and communities in Tennessee. Some span more than one payment area; confirm with the service ZIP.
- Adams
- Adamsville
- Alamo
- Alcoa
- Alexandria
- Algood
- Allardt
- Altamont
43757 billing questions
How does this differ from 43756?
Both describe diagnostic duodenal aspiration. Use 43757 for multiple specimens and 43756 for a single specimen.
Can each specimen be billed as a separate unit?
The multiple-specimen code represents the diagnostic collection of multiple specimens. Document the collection clearly rather than counting each specimen as a separate service.
How does this differ from 43755?
Code 43755 is for diagnostic aspiration from the stomach. Code 43757 is for multiple diagnostic specimens collected from the duodenum.
Is same-day preoperative or postoperative care included?
Yes. The 0-day global period includes same-day preoperative and postoperative care.
Can an assistant or co-surgeon be reported?
CMS allows payment for an assistant at surgery. 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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