$357.74–$390.46
Both codes describe diagnostic duodenal intubation with aspiration. Choose 43756 for one specimen and 43757 when multiple specimens are obtained.
On this page
CMS RVU26D · Effective 2026-10-01
43756 Duodenal aspiration Medicare reimbursement rates in Missouri
Reports diagnostic passage of a tube into the duodenum to aspirate one specimen of duodenal contents for laboratory evaluation. Compare 43756 office and facility rates across CMS payment localities in Missouri.
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 43756 in Missouri?
Missouri has 3 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 3 payment areas shown below, using the same CMS release.
Office / nonfacility
$265.15–$290.04
3 of 3 localities have a supported rate.
Facility setting
$44.31–$46.15
3 of 3 localities have a supported rate.
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.
Where 43756 pays more and less in Missouri
3 payment localities
$265.15 to $290.04
Gastrointestinal procedure
About 43756: Diagnostic duodenal intubation with aspiration
Reports diagnostic passage of a tube into the duodenum to aspirate one specimen of duodenal contents for laboratory evaluation.
A clinician passes an intubation tube into the duodenum and aspirates duodenal contents for diagnostic testing. The service may be performed when a specimen of duodenal fluid is needed for laboratory evaluation; it is distinct from collecting gastric contents or placing a tube for therapeutic use. The code is for one specimen, making specimen count a key distinction from its duodenal sibling code.
Report the service when documentation supports diagnostic duodenal intubation and aspiration of a single specimen. The record should identify the duodenal site, the diagnostic purpose, and the specimen obtained. 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 43756
- 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 RVU0.75 · 8%
- Practice expense (office) RVU8.26 · 91%
- Malpractice RVU0.07 · 1%
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.
43756 compared with similar codes
Office rates for Missouri, from the same CMS release.
$294.96–$323.95
43754 is for diagnostic aspiration of a gastric specimen; 43756 is for a duodenal specimen.
$198.06–$215.31
43755 covers multiple diagnostic gastric specimens. 43756 concerns a single specimen from the duodenum.
No office rate
43753 describes therapeutic gastric intubation with aspiration. 43756 is diagnostic sampling from the duodenum.
Compare 43756 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.
3 of 3 payment localities
Metropolitan Kansas City →
Office / nonfacility
$286.40
Facility
$45.84
Metropolitan St. Louis →
Office / nonfacility
$290.04
Facility
$46.15
Rest Of Missouri →
Office / nonfacility
$265.15
Facility
$44.31
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43756 billing questions
When should 43756 be chosen over 43757?
Use 43756 for aspiration of one diagnostic duodenal specimen. The related 43757 code is for multiple specimens.
How does this differ from gastric intubation codes?
43756 involves diagnostic intubation and aspiration in the duodenum. Codes 43754 and 43755 concern gastric specimens, with the specimen count distinguishing those codes.
Can tube placement be billed separately?
The intubation and aspiration are part of this diagnostic service. Do not separately report a tube-placement service for the same intubation.
What documentation supports reporting 43756?
Document that the tube reached the duodenum, that aspiration was performed for diagnostic evaluation, and that one specimen was obtained.
Can modifier 50 be used, or can co-surgeons be reported?
Modifier 50 is inappropriate for this service. CMS does not permit co-surgeons or team surgery; an assistant at surgery may be paid.
What care is included in the global period?
The service has a 0-day global period, which includes same-day preoperative and postoperative care.
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.
5,28443753,,Tx gastro intub w/asp,A,,0.44,0.09,NA,0.09,,0.08,0.61,0.61,0,000,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,28543754,,Dx gastr intub w/asp spec,A,,0.44,9.61,,0.88,,0.11,10.16,1.43,0,000,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,28643755,,Dx gastr intub w/asp specs,A,,0.92,5.71,,0.64,,0.09,6.72,1.65,0,000,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,28743756,,Dx duod intub w/asp spec,A,,0.75,8.26,,0.59,,0.07,9.08,1.41,0,000,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,28843757,,Dx duod intub w/asp specs,A,,1.23,10.84,,0.73,,0.14,12.21,2.10,0,000,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,28943761,,Reposition gastrostomy tube,A,,1.96,1.44,,0.41,,0.28,3.68,2.65,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,29043762,,Rplc gtube no revj trc,A,,0.73,7.27,,0.15,,0.15,8.15,1.03,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00