CPT code 47570: Biliary bypass, laparoscopic approach2026 Medicare rate & RVUs in California

CMS doesn’t publish an office rate for 47570 in California.

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

What 47570 covers

This operation uses laparoscopic access to connect the gallbladder to a segment of intestine, creating a route for bile to drain around an obstruction in its usual outflow pathway. A general or hepatobiliary surgeon may perform it when the gallbladder and cystic duct can provide a usable source of drainage. It is an uncommon reconstructive operation, generally performed in an operating room under general anesthesia; the gallbladder remains part of the bypass.

Select this code for the laparoscopic bypass, not for removal of the gallbladder. The operative report should identify the indication, laparoscopic approach, intestinal connection, and anatomy supporting the bypass. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. An assistant at surgery may be paid; co-surgeon payment requires 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 47570 pays more and less in California

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

29 of 29 payment localities

How the 47570 rate is calculated

Each of 47570’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 47570

47570 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

47570 compared with similar codes

How to choose

47562Laparoscopic cholecystectomyWithout cholangiography or exploration

This code describes laparoscopic gallbladder removal. Choose 47570 for a laparoscopic gallbladder-to-intestine drainage bypass that retains the gallbladder.

47563Laparoscopic cholecystectomyWith cholangiography

This code describes laparoscopic gallbladder removal with cholangiography. It is not the bypass operation reported with 47570.

47564Laparoscopic cholecystectomyWith common duct exploration

This code describes laparoscopic gallbladder removal with common bile duct exploration. Use 47570 when the laparoscopic procedure instead creates a gallbladder-to-intestine drainage route.

47700Bile duct exploration

This is the open approach to a gallbladder-to-intestine bypass; 47570 is for the laparoscopic approach.

Codes related to 47570

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