CPT code 44145: Partial colectomy2026 Medicare rate & RVUs in Iowa
Reports open removal of part of the colon with reconnection to the rectum through a low pelvic anastomosis, commonly after rectosigmoid resection.
CMS doesn’t publish an office rate for 44145 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 44145 covers
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.
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 in Iowa
| Payment locality | Office | Facility |
|---|---|---|
| Iowa | Unavailable | $1,358.96 |
How the 44145 rate is calculated
Each of 44145’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 · 44145
RVUs × geographic indexes × conversion factor
Work27.87
27.87 RVUs× 1.000 GPCI
Practice expense11.33
11.33 RVUs× 1.000 GPCI
Malpractice6.17
6.17 RVUs× 1.000 GPCI
Adjusted RVUs
45.3700
Conversion factor
$33.4009
Medicare rate
$1,515.40
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 44145
44145 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 44145
Partial colectomy
| 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) | 0.09/0.81/0.10 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 44145
Partial colectomy
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
44145 without 51 · national facility
$1,515.40
Partial colectomy
44145-51 · Second procedure: 50%
$757.70
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%).
44145 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 44140Partial colectomy
- Both describe partial colectomy with anastomosis, but 44145 is distinguished by a low pelvic connection between colon and rectum.
- 44146Partial colectomy
- 44146 includes the low pelvic anastomosis plus a colostomy; 44145 describes the low pelvic anastomosis without that additional colostomy.
- 44207Colectomy
- 44207 describes the laparoscopic approach for a comparable low pelvic anastomosis. 44145 represents the open operation.
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 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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