CPT 74330Radiology

X-ray bile/panc endoscopy

CPT code 74330 covers X-ray imaging of the bile ducts and pancreatic ducts performed during an endoscopic procedure (ERCP). This is the radiological component of taking pictures of these internal ducts using contrast dye and fluoroscopy while a scope is inserted.

Showing rates for

National Average

Base Medicare rate

$25.88

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

0.56

PE RVU (NF)

0.22

MP RVU

0.02

Total RVU

0.8

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Always verify who performed the radiological supervision and interpretation before billing - only the physician who actually interpreted the fluoroscopic images should bill 74330
Impact: Prevents duplicate billing and potential fraud allegations when both GI and radiology attempt to bill the same service
Bill 74330 separately from the endoscopic procedure code (43260-43278) only when documented as a distinct S&I service by a separate physician or clearly documented as separate interpretation
Impact: Improper bundling causes automatic denials; proper separation can recover $25.88 per procedure when legitimately separate
Ensure the written interpretation report is completed and signed before claim submission, documenting specific findings of biliary and pancreatic ductal anatomy
Impact: Missing or incomplete reports are the #1 audit trigger for S&I codes, risking full recoupment of $25.88 plus penalties
Use modifier 26 when radiologist provides interpretation only in a hospital setting where the facility owns the equipment
Impact: Correct modifier use prevents denials and ensures proper payment split between professional and technical components
Document the medical necessity for S&I separately when billing in addition to ERCP procedure codes, noting specific indications for fluoroscopic guidance
Impact: Clear documentation reduces denial rate by approximately 40-60% for separately billed S&I services
Verify that your facility's contract with Medicare and commercial payers recognizes separate billing for 74330 versus global ERCP payments
Some contracts bundle S&I into global ERCP payment; attempting separate billing wastes resources and causes systematic denials

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Frequently asked questions

What is the 2025 Medicare reimbursement rate for CPT code 74330?

The 2025 Medicare national average payment rate for CPT 74330 is $25.88 for both facility and non-facility settings. This is based on 0.8 total RVUs multiplied by the 2025 conversion factor of 32.3465.

Can CPT 74330 be billed separately from ERCP procedure codes?

Yes, but only when performed and interpreted by a separate qualified physician as a distinct service. Most payers consider basic fluoroscopic guidance included in ERCP procedure codes (43260-43278), so separate billing requires clear documentation of why additional radiological supervision and interpretation was medically necessary and performed by a distinct provider.

Who can bill CPT code 74330 for ERCP procedures?

CPT 74330 can be billed by radiologists or other qualified physicians who provide the radiological supervision and interpretation service. The physician billing must be the one who actually interpreted the fluoroscopic images and produced a written report. Only one physician should bill 74330 for a single ERCP procedure.

What modifier should be used with 74330 when only interpretation is provided?

Use modifier 26 (Professional Component) when the radiologist provides only the interpretation service and does not own the fluoroscopy equipment. The facility would separately bill the technical component (modifier TC). Without a modifier, the code represents the global service including both professional and technical components.

How many RVUs is CPT code 74330 worth in 2025?

CPT 74330 has 0.8 total RVUs in 2025, consisting of 0.56 work RVUs, 0.22 practice expense RVUs, and 0.02 malpractice RVUs. These values are the same for both facility and non-facility settings.

What documentation is required to bill CPT 74330?

A separate written interpretation report signed by a qualified physician is required. The report must document the fluoroscopic guidance provided, describe the biliary and pancreatic ductal anatomy visualized, detail specific findings, and provide an impression. The report must be completed and available at the time of claim submission.

Why was my CPT 74330 claim denied as bundled with the ERCP?

Most payers bundle basic fluoroscopic guidance into ERCP procedure payments. Denials occur when the payer considers the S&I service inclusive rather than separate. To successfully bill separately, you must document that a distinct physician performed comprehensive radiological interpretation beyond standard procedural fluoroscopy, and that this separate service was medically necessary.