Billing code 43771: Gastric device revisionMedicare rate & RVUs in Iowa
Reports laparoscopic operative revision of an existing adjustable gastric restrictive device component, such as its access port or connecting system.
CMS doesn’t publish an office rate for 43771 in Iowa.
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 9 sections
What 43771 covers
A bariatric surgeon uses laparoscopy to revise a component of an existing adjustable gastric band system. The work may address a problem with the access port or connecting tubing, such as displacement or malfunction. This is an operative revision, not a routine band adjustment performed by accessing the port through the skin. It is typically performed in a hospital operating room for a patient with a previously placed gastric restrictive device.
Report the code when the operative service revises a component rather than placing, removing, or replacing the device as a whole. Documentation should identify the component revised, the reason for surgery, the laparoscopic approach, and the work performed. The code has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in the same session, CMS pays the highest-valued procedure in full and other procedures at 50%. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted. Modifier 50 is inappropriate for this device revision.
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.
43771 in Iowa
| Payment locality | Office | Facility |
|---|---|---|
| Iowa | Unavailable | $1,067.36 |
How the 43771 rate is calculated
Each of 43771’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 · 43771
RVUs × geographic indexes × conversion factor
Work20.27
20.27 RVUs× 1.000 GPCI
Practice expense10.42
10.42 RVUs× 1.000 GPCI
Malpractice5.42
5.42 RVUs× 1.000 GPCI
Adjusted RVUs
36.1100
Conversion factor
$33.4009
Medicare rate
$1,206.11
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 43771
43771 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 43771
Gastric device revision
| 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) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.84/0.07 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 43771
Gastric device revision
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
43771 without 51 · national facility
$1,206.11
Gastric device revision
43771-51 · Second procedure: 50%
$603.06
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%).
43771 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 43770Gastric band placement
- Use 43770 for laparoscopic placement of an adjustable gastric restrictive device. This code is for revision of a component of a device already in place.
- 43773Gastric band surgery
- Use 43773 when the device is replaced. This code describes revision of a component rather than replacement of the device.
- 43774Gastric band removal
- Use 43774 when the device is removed and replaced during the service. This code is for component revision, not removal and replacement.
43771 billing questions
How does this differ from routine gastric band adjustment?
This code describes laparoscopic operative revision of a device component. Routine adjustment through the subcutaneous access port is not the operative service described here.
When should the full device replacement code be considered?
Use 43773 when the service replaces the gastric restrictive device, rather than revising a component while retaining the device.
Is this an add-on code?
No. It represents a standalone laparoscopic revision service and is not reported as an add-on to another procedure.
What documentation supports reporting this code?
Document the laparoscopic approach, the specific component revised, the clinical reason for revision, and the operative work. Clarify whether the device was revised, removed, or replaced.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
Can modifier 50 be used?
No. Modifier 50 is inappropriate because this service revises a device component, not paired anatomy.
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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