CPT code 47531: Cholangiogram, through existing catheter2026 Medicare rate & RVUs in Colorado

In Colorado, Medicare pays $420.45 for 47531 in the office and $62.22 when it’s performed in a hospital or facility.

Check a contract rate as a % of Medicare · 47531 nationwide

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

What 47531 covers

This service uses an existing percutaneous biliary catheter to inject contrast and image the biliary tree under fluoroscopy. It can show duct anatomy, catheter position, or whether contrast passes through the ducts and into the bowel. Interventional radiologists and other physicians performing image-guided biliary procedures commonly provide it in a hospital or outpatient interventional setting. The code includes fluoroscopic guidance, image documentation, and the imaging report.

Report 47531 when the injection is performed through an already established catheter; use 47532 when the cholangiogram is performed through newly created access. The record should identify the existing catheter, document the contrast injection and fluoroscopic findings, and support the medical reason for imaging. This is a minor procedure with a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple procedure reduction. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service; co-surgeons and team surgery are 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.

How Colorado compares for 47531

Across 109 of 109 payment localities, the office rate for 47531 runs from $346.66 in Arkansas to $556.28 in San Benito County, CA. Colorado pays $420.45. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

47531 rates by state

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

See 47531 in every payment locality

How the 47531 rate is calculated

Each of 47531’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 47531

The CMS indicators that decide how 47531 is paid alongside other services.

What modifiers do to the payment

When to use modifier 51

Codes related to 47531

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

How 47531 has changed in Colorado

Price 47531 for an earlier date of service

Where the Colorado rate applies

Colorado is a Medicare payment area, not a city. Our Census mapping connects it to 485 cities and communities in Colorado. Some span more than one payment area; confirm with the service ZIP.

• Acres Green
• Aetna Estates
• Aguilar
• Air Force Academy
• Akron
• Alamosa
• Alamosa East
• Allenspark

Browse all communities in Colorado

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