Summary & Overview
CPT 47400: Hepatic Duct Incision for Exploration, Stone Removal, or Drainage
CPT code 47400 denotes an open hepatic duct incision performed to examine the duct, extract stones, or insert a drainage tube. This code captures a discrete operative hepatobiliary intervention that remains relevant across surgical specialties managing biliary obstruction and related complications. Nationally, billing and coverage for this procedure affect hospital surgical case mix, resource use for hepatobiliary care, and reimbursement for operative management of biliary disease.
Key payers referenced in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise operational summary of the service and typical sites of care, plus benchmarking context where available. The publication highlights common clinical indications for the procedure, coding guidance essentials, and payer coverage patterns when provided. It also outlines where users can expect to find related policy updates or prior authorization requirements under major national payers. The overview aims to give clinicians, coding professionals, and policy analysts a clear, national-level understanding of what CPT code 47400 represents, why it matters for hospital and surgical billing, and what areas to review for payer-specific documentation and coverage policy.
Data not available in the input for specific modifiers, taxonomies, ICD-10 pairings, or payer-specific payment amounts.
Billing Code Overview
CPT code 47400 describes an open surgical procedure in which the provider incises the hepatic duct to inspect the ductal lumen, remove obstructing stones, or place a tube for biliary drainage. This procedure is classified as a hepatobiliary surgical exploration and drainage service.
-
Service type: Surgical hepatobiliary exploration and drainage
-
Typical site of service: Inpatient hospital operating room or ambulatory surgical center, depending on clinical circumstance and patient stability
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting with right upper quadrant abdominal pain, fever, jaundice, or abnormal liver function tests suggestive of biliary obstruction or cholangitis. Imaging with ultrasound or CT demonstrates dilated intrahepatic or common hepatic ducts or suspected choledocholithiasis. The surgical team schedules an open or laparoscopic operative cholangiotomy (47400) to incise the hepatic duct for direct exploration, stone removal, ductal irrigation, or placement of a temporary T-tube or drainage catheter. The workflow includes preoperative evaluation (labs, coagulation profile, cross-sectional imaging), informed consent detailing risks of bile leak and infection, general anesthesia, intraoperative cholangiogram or direct inspection, stone extraction or bile duct decompression, and placement of a biliary drainage tube as indicated. Postoperative care includes monitoring for bile leak, serial LFTs, tube care instructions if a T-tube is left in place, and outpatient follow-up with possible tube cholangiography prior to tube removal.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work or complexity of 47400 substantially exceeds typical expectations and documentation supports increased work. |
52 | Reduced services | Use when a portion of the planned 47400 is not completed or only partial exploration is performed. |
53 | Discontinued procedure | Use when 47400 is begun but stopped due to patient instability or unexpected findings precluding completion. |
62 | Two surgeons | Use when two surgeons of different specialties are required to perform 47400 concurrently for increased complexity. |
63 | Procedure performed on infant less than 4 kg | Use when applicable pediatric weight-based reporting applies (rare for this code). |
66 | Surgical team approach | Use when a surgical team (multiple surgeons with divided responsibilities) performs 47400. |
78 | Unplanned return to OR | Use when a patient returns to the operating room for a related procedure after the initial 47400 during the postoperative period. |
79 | Unrelated procedure or service by the same physician during the postoperative period | Use when an unrelated procedure is performed during the global period (not commonly applied to 47400). |
26 | Professional component | Use when separate billing is needed for the physician component of an intraoperative cholangiogram or interpretation related to 47400. |
51 | Multiple procedures | Use when 47400 is reported with additional unrelated surgical procedures during the same operative session. |
54 | Surgical care only | Use when the surgeon provides only the surgical portion of care for 47400 and another provider manages pre/postoperative care. |
55 | Postoperative management only | Use when the surgeon provides only postoperative care related to 47400. |
56 | Preoperative management only | Use when the surgeon provides only preoperative evaluation for 47400. |
73 | Discontinued outpatient procedure prior to anesthesia | Use when 47400 was scheduled but cancelled after patient arrival but before anesthesia administration. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 207P00000X | General Surgery | Primary specialty performing biliary duct exploration and cholangiotomy. |
| 207RH0000X | Surgical Oncology | Performs complex biliary surgery when malignancy or complex hepatobiliary pathology is involved. |
| 207K00000X | Transplant Surgery | May perform biliary duct operations in the setting of liver transplant or complex ductal reconstructions. |
| 207L00000X | Pediatric Surgery | Performs hepatic duct exploration in pediatric patients when indicated. |
| 208800000X | Gastroenterology | May assist with intraoperative endoscopic procedures or pre/postoperative biliary management, though not the primary operator for 47400. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
K80.65 | Calculus of bile duct with cholangitis | Common indication for 47400 when stones obstruct the hepatic duct and cause infection. |
K80.5 | Calculus of bile duct without cholangitis | Indicates choledocholithiasis that may require duct incision and stone removal. |
K83.1 | Obstruction of bile duct | Direct indication for duct incision and exploration to relieve obstruction. |
K83.0 | Cholestasis | May reflect impaired bile flow prompting diagnostic and therapeutic duct exploration. |
K83.8 | Other specified diseases of biliary tract | Includes biliary strictures or anomalies that can necessitate surgical exploration (47400). |
C22.0 | Liver cell carcinoma | Malignant involvement of biliary structures may require ductal exploration or drainage as part of surgical management. |
K91.2 | Postcholecystectomy syndrome | Persistent biliary symptoms after gallbladder removal may prompt operative duct evaluation. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
47562 | Laparoscopy, surgical; cholecystectomy with exploration of common duct | Performed when cholecystectomy and laparoscopic common duct exploration accompany or precede open exploration of the hepatic duct. |
47563 | Laparoscopy, surgical; cholecystectomy with exploration of common bile duct, with T-tube | Related when biliary drainage tube placement is required following duct exploration similar in intent to 47400. |
47540 | Open cholecystectomy | May be performed in the same operative session when gallbladder disease coexists with choledocholithiasis necessitating 47400. |
47579 | Unlisted laparoscopic procedure, biliary tract | Used for laparoscopic biliary procedures not otherwise specified when alternative approaches to duct exploration are performed. |
47520 | Cholangiography, radiological or fluoroscopic; operative | Often performed intraoperatively with 47400 to delineate ductal anatomy and locate stones. |
43264 | Endoscopic retrograde cholangiopancreatography (ERCP) with sphincterotomy and/or stone extraction | May be performed pre- or postoperatively as a less invasive alternative or adjunct to 47400 for stone removal or ductal decompression. |