Choose 43757 when multiple diagnostic specimens are collected from the duodenum; 43756 describes a single specimen.
On this page
CMS RVU26D · Effective 2026-10-01
43757 Duodenal aspiration Medicare reimbursement rates in Alabama
Reports diagnostic collection of multiple aspirate specimens from the duodenum by intubation, such as sampling contents for laboratory analysis. Compare 43757 office and facility rates across CMS payment localities in Alabama.
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.
What does Medicare pay for 43757 in Alabama?
Alabama has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$360.54
1 of 1 localities have a supported rate.
Payment area: Alabama
One mapped payment locality.
Facility setting
$65.06
1 of 1 localities have a supported rate.
Payment area: Alabama
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Gastroenterology
About 43757: Diagnostic duodenal aspiration, multiple specimens
Reports diagnostic collection of multiple aspirate specimens from the duodenum by intubation, such as sampling contents for laboratory analysis.
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.
CMS billing rules for 43757
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU1.23 · 10%
- Practice expense (office) RVU10.84 · 89%
- Malpractice RVU0.14 · 1%
31
Medicare services in 2024 · #5646 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.
43757 compared with similar codes
Office rates for Alabama, from the same CMS release.
43755 is diagnostic aspiration from the stomach. Use 43757 for multiple diagnostic specimens collected from the duodenum.
43754 describes therapeutic gastric intubation and aspiration, not multiple diagnostic specimens collected from the duodenum.
Compare 43757 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Alabama →
Office / nonfacility
$360.54
Facility
$65.06
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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 43757 in Alabama.
PPRRVU2026_Oct_nonQPP.csv
5,288
- Code
- 43757
- Physician work
- 1.23
- Practice expense
- 10.84
- Malpractice
- 0.14
GPCI2026.csv
4
- Locality
- Alabama
- Physician work
- 1.000
- Practice expense
- 0.875
- Malpractice
- 0.566
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 1.23 | × 1.000 | 1.2300 |
| Practice expense | 10.84 | × 0.875 | 9.4850 |
| Malpractice | 0.14 | × 0.566 | 0.0792 |
| Total RVUs | 10.7942 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Alabama$360.54
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 1.23 | 1 |
| Practice expense | 10.84 | 0.875 |
| Malpractice | 0.14 | 0.566 |
(1.23 × 1 + 10.84 × 0.875 + 0.14 × 0.566) × $33.4009 = $360.54
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 1.23 | 1 |
| Practice expense | 0.73 | 0.875 |
| Malpractice | 0.14 | 0.566 |
(1.23 × 1 + 0.73 × 0.875 + 0.14 × 0.566) × $33.4009 = $65.06
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.
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 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.
