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    v1.0.28
    OpenPayerBilling CodesDiagnostic Radiology (Diagnostic Imaging) Procedures of the Gastrointestinal TractCPT cpt-74330-endoscopic-duct-fluoroscopic-imaging-interpretation
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    CPT 74330: Imaging Supervision for Endoscopic Duct Catheterization

    Medicare pays $28 on average nationally for this procedure.

    CPT code 74330 describes imaging supervision and interpretation for an endoscopic duct catheterization procedure in which the provider uses fluoroscopy to X‑ray the bile and pancreatic ducts after contrast administration to evaluate for tumors, strictures, stones, or other abnormalities; service type: imaging supervision and interpretation for endoscopic duct catheterization; typical site of service: hospital outpatient or endoscopy suite where fluoroscopic duct imaging is performed.

    For related coverage guidance, see recent payer policy updates: Esophagogastroduodenoscopy (EGD) Coverage Policy, Magnetic Sphincter Augmentation for the Treatment of Gastroesophageal Reflux Disease (GERD), Fecal Analysis in the Diagnosis of Intestinal Dysbiosis and Fecal Microbiota Transplant Testing.

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    Clinical & Coding Specifications

    Clinical Context

    A 62-year-old male with a history of choledocholithiasis and intermittent right upper quadrant pain presents with jaundice and elevated liver enzymes. After an initial ultrasound and CT suggesting a common bile duct stone and possible biliary stricture, the gastroenterology team schedules an endoscopic retrograde cholangiopancreatography (ERCP) with selective cannulation of the bile and pancreatic ducts to diagnose and treat obstructing lesions. During the procedure, the endoscopist advances an endoscope into the duodenum, cannulates the ampulla, and inserts a duct catheter. The imaging physician (radiologist or fluoroscopy-certified endoscopist) provides real-time fluoroscopic supervision and interprets the ductograms while contrast is injected to delineate ductal anatomy, identify stones, strictures, or filling defects, and guide therapeutic maneuvers performed by the endoscopist. The service represented by 74330 is billed for the imaging supervision and interpretation component only when the duct catheterization is a separately reportable endoscopic procedure.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    43260Endoscopic retrograde cholangiopancreatography, diagnostic, with or without collection of specimens; with or without samplingRepresents the endoscopic duct catheterization procedure that is separately reportable; 74330 would be billed for imaging supervision/interpretation accompanying this or similar ERCP codes.
    43262Endoscopic retrograde cholangiopancreatography, with endoscopic sphincterotomy and/or removal of obstruction/stone(s)Therapeutic ERCP performed by the endoscopist; imaging interpretation with 74330 documents the fluoroscopic component.
    74328Radiologic supervision and interpretation, percutaneous transhepatic cholangiography (PTC) or cholangiogramRelated imaging study of the biliary tree; used when percutaneous rather than endoscopic duct access is performed.
    74315Radiologic supervision and interpretation, cholangiography, including injection procedure when performedAlternative radiologic cholangiography codes that may be used for non-endoscopic cholangiograms; relates to imaging interpretation of biliary ducts.
    76705Ultrasound, abdominal, limited, single or specific organ systemOften used pre-procedure to detect biliary dilation or stones prior to ERCP and fluoroscopic imaging.

    Related Modifiers

    9 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    208800000XUrology PhysicianA urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has compreh…
    207L00000XAnesthesiology PhysicianAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an opera…
    207SG0203XClinical Molecular Genetics PhysicianA clinical molecular geneticist demonstrates competence in performing and interpreting molecular analyses relevant to the diagnosis and management of …
    2080H0002XPediatric Hospice and Palliative Medicine PhysicianA pediatrician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This speci…
    261QR0401XComprehensive Outpatient Rehabilitation Facility (CORF)Ambulatory Health Care Facilities · Clinic/Center
    261QM0801XMental Health Clinic/Center (Including Community Mental Health Center)Ambulatory Health Care Facilities · Clinic/Center
    324500000XSubstance Abuse Rehabilitation FacilityA facility or distinct part of a facility that provides a 24 hr therapeutically planned living and rehabilitative intervention environment for the tre…
    273100000XEpilepsy Hospital UnitAn Epilepsy Unit is a distinct unit of a hospital that provides services that may include observation, urgent care, diagnostic testing, treatment, and…

    Related Payer Policy Updates

    Specialty: Gastroenterology1 / 3

    7 rows

    PolicyPayerEffective Date
    Esophagogastroduodenoscopy (EGD) Coverage Policyevicore2026-11-05
    Magnetic Sphincter Augmentation for the Treatment of Gastroesophageal Reflux Disease (GERD)univerahealthcare2026-10-15
    Fecal Analysis in the Diagnosis of Intestinal Dysbiosis and Fecal Microbiota Transplant TestingOscar Health2026-10-01
    Serum Testing for Hepatic Fibrosis in the Evaluation and Monitoring of Chronic Liver DiseaseOscar Health2026-10-01
    Pancreatic Enzyme Testing for Acute PancreatitisOscar Health2026-10-01
    Helicobacter pylori TestingOscar Health2026-10-01
    Celiac Disease TestingOscar Health2026-10-01

    Related Codes

    CPT-74210-PHARYNX-CERVICAL-ESOPHAGUS-CONTRAST-STUDY

    CPT 74210: Radiologic Exam of Pharynx and Cervical Esophagus with Contrast

    CPT-74220-ESOPHAGRAM-FLUOROSCOPIC-BARIUM-SWALLOW

    CPT 74220: Fluoroscopic Esophagram (Barium Swallow)

    CPT-74221-DOUBLE-CONTRAST-ESOPHAGRAM-BARIUM-EFFERVESCENT

    CPT 74221: Double-Contrast Esophagram with Barium and Effervescent Agent

    CPT-74230-VIDEOFLUOROSCOPIC-SWALLOW-STUDY

    CPT 74230: Videofluoroscopic Swallowing Study

    CPT-74235-ESOPHAGEAL-FOREIGN-BODY-REMOVAL-IMAGING-INTERPRETATION

    CPT 74235: Imaging Supervision for Esophageal Foreign Body Removal

    CPT-74240-UPPER-GASTROINTESTINAL-SERIES-BARIUM-CONTRAST

    CPT 74240: Upper Gastrointestinal Barium Contrast Study

    CPT-74246-UPPER-GI-DOUBLE-CONTRAST-FLUOROSCOPY

    CPT 74246: Upper GI Series with Air and High-Density Barium

    CPT-74248-SMALL-INTESTINE-FOLLOW-THROUGH-AFTER-UPPER-GASTROINTESTINAL-STUDY

    CPT 74248: Small Intestine Follow-Through, Multiple Series

    CPT-74250-SMALL-BOWEL-SINGLE-CONTRAST-BARIUM-STUDY

    CPT 74250: Small Bowel Single‑Contrast Barium Study

    CPT-74251-SMALL-BOWEL-DOUBLE-CONTRAST-ENTERIC-RADIOGRAPHY

    CPT 74251: Small Bowel Double-Contrast Enteroclysis

    Showing 1–10 of 25

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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