No office rate
Both describe partial colectomy with anastomosis, but 44145 is distinguished by a low pelvic connection between colon and rectum.
On this page
CMS RVU26D · Effective 2026-10-01
44145 Partial colectomy Medicare reimbursement rates in Colorado
Reports open removal of part of the colon with reconnection to the rectum through a low pelvic anastomosis, commonly after rectosigmoid resection. Compare 44145 office and facility rates across CMS payment localities in Colorado.
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 44145 in Colorado?
Colorado 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
No supported rate
Facility setting
$1505.66
1 of 1 localities have a supported rate.
Payment area: Colorado
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.
Colorectal surgery
About 44145: Partial colectomy with low pelvic anastomosis
Reports open removal of part of the colon with reconnection to the rectum through a low pelvic anastomosis, commonly after rectosigmoid resection.
This open abdominal operation removes a segment of colon and reconnects the remaining colon to the rectum with a low pelvic anastomosis. A colorectal or general surgeon may perform it for rectosigmoid cancer, complicated diverticular disease, or another condition requiring resection when bowel continuity can be restored. The operative report should establish the resection and the low pelvic connection; the diagnosis alone does not distinguish this service from other partial colectomy procedures.
Select this code when the documented operation includes the low pelvic coloproctostomy, rather than a different reconstruction or ostomy. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team-surgery payment is not permitted.
CMS billing rules for 44145
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- 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 paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU27.87 · 61%
- Practice expense (office) RVU11.33 · 25%
- Malpractice RVU6.17 · 14%
4.1K
Medicare services in 2024 · #1989 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.
44145 compared with similar codes
Office rates for Colorado, from the same CMS release.
No office rate
44146 includes the low pelvic anastomosis plus a colostomy; 44145 describes the low pelvic anastomosis without that additional colostomy.
No office rate
44207 describes the laparoscopic approach for a comparable low pelvic anastomosis. 44145 represents the open operation.
Compare 44145 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
Colorado →
Office / nonfacility
Unavailable
Facility
$1505.66
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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 44145 in Colorado.
PPRRVU2026_Oct_nonQPP.csv
5,352
- Code
- 44145
- Physician work
- 27.87
- Practice expense
- 11.33
- Malpractice
- 6.17
GPCI2026.csv
37
- Locality
- Colorado
- Physician work
- 1.012
- Practice expense
- 1.064
- Malpractice
- 0.781
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 27.87 | × 1.012 | 28.2044 |
| Practice expense | 11.33 | × 1.064 | 12.0551 |
| Malpractice | 6.17 | × 0.781 | 4.8188 |
| Total RVUs | 45.0783 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Colorado$1505.66
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 27.87 | 1.012 |
| Practice expense | 11.33 | 1.064 |
| Malpractice | 6.17 | 0.781 |
(27.87 × 1.012 + 11.33 × 1.064 + 6.17 × 0.781) × $33.4009 = $1505.66
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.
44145 billing questions
How does this differ from 44140?
44145 includes a low pelvic connection between the colon and rectum. Use 44140 for partial colectomy with anastomosis when the documented reconstruction is not a low pelvic coloproctostomy.
Is the anastomosis separately billable?
The low pelvic coloproctostomy is part of the service represented by 44145; it is not reported as a separate anastomosis service.
Can splenic flexure mobilization be reported separately?
CPT 44139 may be reported in addition when splenic flexure mobilization is performed with the colectomy and the operative documentation supports it.
Should modifier 50 be used?
No. Modifier 50 is not appropriate for this colon resection; report the service based on the documented resection and reconstruction.
What documentation supports 44145?
The operative report should describe the colon resection and confirm that the remaining colon was connected to the rectum through a low pelvic anastomosis.
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.
5,34944141,,Partial removal of colon,A,,29.16,14.31,NA,14.31,,7.16,50.63,50.63,0,090,0.09,0.81,0.10,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,35044143,,Partial removal of colon,A,,27.10,12.13,NA,12.13,,6.60,45.83,45.83,0,090,0.09,0.81,0.10,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,35144144,,Partial removal of colon,A,,29.16,12.76,NA,12.76,,7.02,48.94,48.94,0,090,0.09,0.81,0.10,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,35244145,,Partial removal of colon,A,,27.87,11.33,NA,11.33,,6.17,45.37,45.37,0,090,0.09,0.81,0.10,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,35344146,,Partial removal of colon,A,,34.42,15.82,NA,15.82,,7.90,58.14,58.14,0,090,0.09,0.81,0.10,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,35444147,,Partial removal of colon,A,,32.85,12.46,NA,12.46,,7.35,52.66,52.66,0,090,0.09,0.81,0.10,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5,35544150,,Removal of colon,A,,29.43,15.59,NA,15.59,,6.79,51.81,51.81,0,090,0.09,0.81,0.10,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3401112,CA,69,VISALIA,1.017,1.096,0.536
3501112,CA,70,YUBA CITY,1.017,1.096,0.536
3601112,CA,75,REST OF CALIFORNIA,1.017,1.096,0.536
3704112,CO,01,COLORADO,1.012,1.064,0.781
3813102,CT,00,CONNECTICUT,1.020,1.077,1.210
3912202,DC,01,DC + MD/VA SUBURBS,1.054,1.178,1.113
4012102,DE,01,DELAWARE,1.005,0.988,0.899