CPT code 44340: Colostomy revision, simple, skin-level2026 Medicare rate & RVUs

Medicare pays $607.23 for 44340 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 44340 covers

A surgeon revises an existing colostomy with a limited, skin-level procedure, such as correcting a narrowed or poorly functioning stoma by revising its superficial opening. The work is confined to the stoma and does not involve deep bowel resection or reconstruction. This is typically performed by a colorectal or general surgeon in a hospital operating room or ambulatory surgical setting when local revision is needed to improve stoma function or fit with an ostomy appliance.

Report 44340 when the operative work supports a simple revision rather than a more extensive reconstruction or repair of a parastomal hernia. The operative note should identify the existing colostomy, the problem addressed, and the extent of revision. Medicare assigns a 90-day global period, including the day-before preoperative visit and related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate; assistant-at-surgery payment is statutorily restricted, co-surgeons require supporting documentation, and team surgery 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.

Where 44340 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

44340 rates by state

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

How the 44340 rate is calculated

Each of 44340’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 44340

44340 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

44340 compared with similar codes

How to choose

44345Colostomy revisionComplicated, with resection and anastomosis

44340 is for limited, skin-level revision. Choose 44345 when the operation involves a complicated revision with deeper resection or reconstruction.

44346Colostomy revisionWith parastomal hernia repair

44346 is the colostomy-revision code that includes repair of a parastomal hernia; 44340 describes a simple revision without that repair.

44312Ileostomy revisionSimple revision

44312 applies to simple revision of an ileostomy. Use 44340 when the existing stoma being revised is a colostomy.

44320ColostomyOpen creation

44320 describes creating a colostomy, while 44340 revises an existing colostomy.

Codes related to 44340

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