Summary & Overview
CPT 0397T: ERCP with Optical Endomicroscopy
CPT code 0397T denotes an endoscopic retrograde cholangiopancreatography (ERCP) performed with optical endomicroscopy (confocal laser endomicroscopy) to obtain high-resolution, pathology-quality images of the gallbladder, pancreas, and bile ducts. The code captures the use of in vivo microscopic imaging as an adjunct to ERCP, supporting more detailed assessment of biliary and pancreatic ductal mucosa than standard endoscopy. Nationally, this technology matters for diagnostic precision in complex hepatobiliary and pancreatic disease and for decision-making about targeted biopsy or therapy.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, common billing modifiers, typical sites of service, and payer coverage considerations. The publication summarizes where 0397T fits within endoscopic service lines, outlines procedural intent and expected clinical applications, and highlights areas where payers commonly evaluate medical necessity. Data not available in the input is noted when relevant. This resource is intended to inform billing, coding, and payer strategy conversations at a national level without state-specific guidance.
Billing Code Overview
CPT code 0397T describes an endoscopic retrograde cholangiopancreatography (ERCP) with optical endomicroscopy, also known as confocal laser endomicroscopy or confocal fluorescent endomicroscopy. This procedure provides greatly magnified, high-resolution, pathology-quality images of the gallbladder, pancreas, and bile ducts, improving visualization of tissue architecture during endoscopic assessment.
Service type: Diagnostic and imaging adjunct to endoscopic retrograde cholangiopancreatography involving in vivo microscopic imaging.
Typical site of service: Hospital outpatient department or ambulatory surgical center where advanced endoscopic procedures and intraductal imaging are performed.
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with a recent history of obstructive jaundice, episodic right upper quadrant pain, and abnormal liver function tests is referred for diagnostic evaluation. Cross-sectional imaging (ultrasound and CT) shows intrahepatic bile duct dilation and a suspicious stricture in the common bile duct. The gastroenterologist performs endoscopic retrograde cholangiopancreatography (ERCP) with adjunctive optical endomicroscopy (0397T) during the same endoscopic session to obtain high-resolution, in vivo microscopic imaging of the bile duct epithelium to better characterize a suspected malignant stricture. The clinical workflow includes pre-procedure consent and sedation evaluation, endoscopic cannulation of the bile duct, cholangiography, targeted tissue sampling (brushings or biopsies) as indicated, and use of confocal laser endomicroscopy to guide biopsy targeting and assess mucosal patterns. Post-procedure monitoring occurs in the recovery area with preplanned pathology follow-up and communication of results to the referring hepatobiliary surgeon or oncologist as indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the work required is substantially greater than typically required for 0397T (documentation must support). |
52 | Reduced services | Use when the procedure is partially reduced or not completed as originally planned. |
53 | Discontinued procedure | Use when 0397T is started but discontinued due to patient instability or other unforeseen circumstances. |
62 | Two surgeons | Use when two surgeons from different specialties perform distinct portions of the procedure concurrently. |
66 | Surgical team | Use when a surgical team performs the procedure with documented team participation. |
73 | Discontinued outpatient procedure prior to anesthesia administration | Use when scheduled 0397T is cancelled after patient preparation but before anesthesia. |
78 | Return to operating/procedure room for unplanned procedure following initial service | Use if the patient requires an immediate repeat endoscopic procedure related to complications of the initial session. |
80 | Assistant surgeon | Use when an assistant surgeon participates and documentation supports their role. |
81 | Minimum assistant surgeon | Use when a minimum assistant surgeon is required and documented. |
82 | Assistant surgeon (when qualified resident surgeon not available) | Use when an assistant surgeon is used because a qualified resident is unavailable. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 208000000X | Gastroenterology | Primary specialty performing ERCP with confocal endomicroscopy. |
| 207R00000X | Colon & Rectal Surgery | May perform endoscopic biliary procedures in select centers. |
| 208VP0002X | Surgical Oncology | Performs diagnostic/interventional biliary procedures in oncologic settings. |
| 366A00000X | Interventional Radiology | Collaborates for percutaneous biliary management; less commonly performs endomicroscopy. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
K83.1 | Obstruction of bile duct | Common indication for ERCP with optical endomicroscopy to evaluate strictures and distinguish benign vs malignant causes. |
K80.20 | Calculus of gallbladder without cholecystitis or obstruction | ERCP with endomicroscopy may be used if there is biliary colic or suspected common bile duct stones. |
K83.0 | Cholangitis | Used when infection of the bile duct necessitates diagnostic ERCP and assessment of ductal mucosa. |
K83.8 | Other specified diseases of biliary tract | Includes strictures or other biliary pathology warranting high-resolution mucosal assessment. |
C24.0 | Malignant neoplasm of extrahepatic bile ducts | Optical endomicroscopy aids in targeted evaluation of suspected biliary malignancy. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
43260 | Endoscopic retrograde cholangiopancreatography, diagnostic, with or without collection of specimen(s) by brushing or washing | 43260 represents the diagnostic ERCP that commonly precedes or accompanies 0397T when cholangiography is required. |
43262 | ERCP with sphincterotomy | Performed when therapeutic biliary sphincterotomy is needed during the same session as 0397T. |
43263 | ERCP including placement of stent(s) | Performed when biliary stenting is required for obstruction identified during ERCP and optical endomicroscopy guides decision-making. |
43264 | ERCP with removal of calculi from biliary or pancreatic ducts | Performed when stone extraction is indicated in the same session as diagnostic endomicroscopy. |
43259 | Endoscopic retrograde cholangiopancreatography; with endoscopic retrograde pancreatography (ERCP) | Used for pancreatobiliary diagnostic interventions related to 0397T when pancreatic duct evaluation is needed. |