CPT code 47780: Biliary reconstruction, extrahepatic duct, Roux-en-Y2026 Medicare rate & RVUs

Medicare pays $2,283.62 for 47780 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 47780 covers

This operation joins an extrahepatic bile duct to the gastrointestinal tract in a Roux-en-Y reconstruction, commonly connecting the duct to a jejunal limb to restore bile drainage. A hepatobiliary or general surgeon typically performs it in the operating room when the duct requires definitive reconstruction, such as after injury, excision, or treatment of an obstructing condition. The operative report should identify the duct and bowel used and describe the Roux-en-Y configuration.

Report the code when the documented reconstruction matches the extrahepatic duct and Roux-en-Y service, rather than a simpler biliary-enteric anastomosis or an anastomosis involving intrahepatic ducts. The code has a 90-day global period, which includes the day-before preoperative visit and 90 days of 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. An assistant at surgery may be paid; 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 47780 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

47780 rates by state

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

How the 47780 rate is calculated

Each of 47780’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 47780

47780 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

47780 compared with similar codes

How to choose

47760Biliary bypassCholedochoenterostomy

Both address an extrahepatic biliary-enteric connection. Use 47780 when the operative report documents the Roux-en-Y configuration; 47760 represents the related service without that distinction.

47765Biliary bypassExtrahepatic duct, intestinal transposition

47765 involves intrahepatic ducts rather than the extrahepatic duct anatomy covered by 47780. Let the documented site of the duct connection guide selection.

47701Bile duct revisionWithout reconstruction

47701 is for revising a biliary anastomosis that already exists. 47780 reports the specified Roux-en-Y reconstruction, not revision alone.

Codes related to 47780

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