CPT code 45110: Rectal resection2026 Medicare rate & RVUs

Medicare pays $1,672.38 for 45110 nationally in a facility.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 45110 covers

This operation removes the rectum through both abdominal and perineal access and includes creation of a colostomy. Colorectal and general surgeons commonly perform it in a hospital operating room, often for rectal cancer when a restorative reconstruction is not planned. The operative report should establish the full extent of rectal removal, both approaches, and the colostomy.

Select this code when the documented operation matches that complete resection and colostomy combination, rather than a partial resection or a different operative approach. It has a 90-day global period that includes the day-before preoperative visit and related postoperative care during the following 90 days. For procedures performed in the same session, Medicare pays the highest-valued procedure in full and reduces other procedures under the standard multiple-procedure rule. Assistant-at-surgery services may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted. Modifier 50 is not appropriate for this single-organ procedure.

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.

Where 45110 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

45110 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 45110 rate is calculated

Each of 45110’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.

Payment rules and modifiers for 45110

45110 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 51

45110 compared with similar codes

How to choose

45111Partial proctectomy

Choose 45111 for partial rectal resection with anastomosis; choose 45110 for complete removal with a colostomy through abdominal and perineal approaches.

45112Rectal removal

Both describe complete rectal removal, but 45112 uses a perineal approach rather than the combined abdominal and perineal approach with colostomy represented by 45110.

45121Proctocolectomy

Use 45121 when the documented resection includes colon as well as rectum; 45110 describes the complete rectal resection and colostomy service.

Codes related to 45110

Related codes aren’t interchangeable: bill the code that matches the service performed.

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

Open CMS sourceHow we calculate rates