44705
No office ratePrepare fecal microbiota
44705 describes preparation of fecal microbiota for instillation. G0455 covers preparation together with instillation.
On this page
CMS RVU26D · Effective 2026-10-01
G0455 Microbiota instillation Medicare reimbursement rates in Guam
Reports preparation and delivery of fecal microbiota, commonly for selected patients with recurrent Clostridioides difficile infection. Compare G0455 office and facility rates across CMS payment localities in Guam.
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 G0455 in Guam?
Guam 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
$157.73
1 of 1 localities have a supported rate.
Payment area: Hawaii, Guam
One mapped payment locality.
Facility setting
$61.27
1 of 1 localities have a supported rate.
Payment area: Hawaii, Guam
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 procedure
About G0455: Fecal microbiota preparation and instillation
Reports preparation and delivery of fecal microbiota, commonly for selected patients with recurrent Clostridioides difficile infection.
G0455 covers preparing fecal microbiota and instilling it into the patient by a delivery method such as colonoscopy, upper gastrointestinal access, or enema. Gastroenterologists commonly provide the service for selected patients with recurrent Clostridioides difficile infection. The code represents the microbiota preparation and delivery, not the colonoscopy or upper endoscopy used to reach the treatment site.
Report G0455 when both preparation and instillation are performed; document the clinical indication, preparation, delivery method, and procedure performed. The code has a 0-day global period, so same-day preoperative and postoperative care is included. Modifier 50 is inappropriate for this service. An assistant at surgery is payable only when medical necessity is documented; co-surgeons and team surgery are not permitted.
CMS billing rules for G0455
- 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 is paid only with documentation of medical necessity.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU1.31 · 30%
- Practice expense (office) RVU2.93 · 67%
- Malpractice RVU0.14 · 3%
498
Medicare services in 2024 · #3568 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.
G0455 compared with similar codes
Office rates for Guam, from the same CMS release.
$407.70
45378 describes a diagnostic colonoscopy; it does not represent microbiota preparation and delivery. G0455 may be reported for the microbiota service when colonoscopic access is used.
$353.05
43235 describes a diagnostic upper endoscopy, not microbiota preparation and instillation. Use it for the endoscopic service when applicable, with G0455 describing the microbiota service.
Compare G0455 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
Hawaii, Guam →
Office / nonfacility
$157.73
Facility
$61.27
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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 G0455 in Hawaii, Guam.
PPRRVU2026_Oct_nonQPP.csv
15,275
- Code
- G0455
- Physician work
- 1.31
- Practice expense
- 2.93
- Malpractice
- 0.14
GPCI2026.csv
46
- Locality
- Hawaii, Guam
- Physician work
- 1.000
- Practice expense
- 1.137
- Malpractice
- 0.579
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 1.31 | × 1.000 | 1.3100 |
| Practice expense | 2.93 | × 1.137 | 3.3314 |
| Malpractice | 0.14 | × 0.579 | 0.0811 |
| Total RVUs | 4.7225 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Hawaii, Guam$157.73
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 1.31 | 1 |
| Practice expense | 2.93 | 1.137 |
| Malpractice | 0.14 | 0.579 |
(1.31 × 1 + 2.93 × 1.137 + 0.14 × 0.579) × $33.4009 = $157.73
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 1.31 | 1 |
| Practice expense | 0.39 | 1.137 |
| Malpractice | 0.14 | 0.579 |
(1.31 × 1 + 0.39 × 1.137 + 0.14 × 0.579) × $33.4009 = $61.27
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.
G0455 billing questions
How does G0455 differ from CPT 44705?
G0455 covers preparation and instillation of fecal microbiota. CPT 44705 describes preparation for instillation, so distinguish the services by whether the microbiota is also delivered.
Can the endoscopic procedure be reported separately?
G0455 describes microbiota preparation and delivery, not the endoscopic access procedure. When a separately reportable colonoscopy or upper endoscopy is performed, report that procedure under its applicable code.
Should modifier 50 be appended for bilateral delivery?
No. CMS identifies bilateral adjustment as inappropriate for G0455.
Can an assistant, co-surgeon, or surgical team be reported?
An assistant at surgery is payable only with documentation of medical necessity. Co-surgeons and team surgery are not permitted for this code.
What care is included in the global period?
G0455 has a 0-day global period. Same-day preoperative and postoperative care is included.
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.
15,272G0452,TC,Molecular pathology interpr,A,,0.00,0.08,,0.08,NA,0.01,0.09,0.09,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
15,273G0453,,Cont intraop neuro monitor,A,,0.60,0.17,NA,0.17,,0.05,0.82,0.82,0,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
15,274G0454,,Md document visit by npp,A,,0.18,0.08,,0.04,,0.01,0.27,0.23,0,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
15,275G0455,,Fecal microbiota prep instil,A,,1.31,2.93,,0.39,,0.14,4.38,1.84,0,000,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
15,276G0458,,Ldr prostate brachy comp rat,E,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
15,277G0459,,Telehealth inpt pharm mgmt,A,,0.95,0.18,NA,0.18,,0.06,1.19,1.19,0,XXX,0.00,0.00,0.00,0,0,9,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
15,278G0460,,Autolog prp not diab ulcer,C,,0.00,0.00,,0.00,,0.00,0.00,0.00,0,XXX,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4309102,FL,99,REST OF FLORIDA,1.000,0.956,1.503
4410212,GA,01,ATLANTA,1.003,1.016,1.201
4510212,GA,99,REST OF GEORGIA,1.000,0.892,1.192
4601212,HI,01,"HAWAII, GUAM",1.000,1.137,0.579
4702202,ID,00,IDAHO,1.000,0.920,0.473
4806102,IL,16,CHICAGO,1.007,1.005,2.295
4906102,IL,12,EAST ST. LOUIS,1.000,0.920,2.014