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    v1.0.30
    OpenPayerBilling CodesDiseases and Disorders of the Hepatobiliary System and PancreasDRG 409-biliary-tract-procedures-except-only-cholecystectomy-with-or-without-c-d-e-with-cc
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    Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. with CC: Inpatient Reimbursement Overview

    DRG 409 encompasses biliary tract procedures except only cholecystectomy with or without common duct exploration when a complication or comorbidity is present; it captures operative biliary interventions with added clinical complexity. This Diagnosis-Related Group matters for inpatient reimbursement because the presence of documented complications or comorbidities alters Medicare payment weight and hospital payment for these surgical cases.

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    DRG 409 Overview

    DRG 409 covers inpatient cases involving biliary tract procedures other than only cholecystectomy, with or without common duct exploration, when a complication or comorbidity is present. This Diagnosis-Related Group groups patients by operative biliary interventions and associated clinical complexity that influence resource use. It matters for Medicare payment because assignment to this Diagnosis-Related Group affects payment weights and hospital reimbursement for surgical management of biliary disease with added clinical complexity. Accurate coding of procedures and comorbid conditions determines proper Medicare Severity Diagnosis-Related Group placement and payment.

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    Clinical Trials

    • Acute procedural intervention trials investigating perioperative strategies to reduce complications after complex biliary tract procedures (excluding isolated cholecystectomy), such as randomized or pragmatic studies comparing different approaches to intraoperative biliary drainage, endoscopic versus surgical biliary decompression, or enhanced recovery protocols in the immediate perioperative period. These studies enroll adults undergoing biliary tract surgery for obstructive jaundice, choledocholithiasis with complications, benign strictures, or biliary trauma, and they measure short-term outcomes like postoperative bile leak, infection, need for reintervention, length of stay, and 30-day morbidity. Findings are directly relevant to surgeons, hospital administrators, and payers because reducing perioperative complications and length of stay lowers costs and DRG-level resource use and improves quality metrics tied to reimbursement.
    • Comparative effectiveness studies assessing choice of definitive management strategies for complex biliary pathology, such as analyses comparing endoscopic retrograde techniques, percutaneous transhepatic approaches, and various surgical reconstructions for recurrent bile duct injury or complex strictures. These observational cohort studies or pragmatic randomized trials typically enroll heterogeneous patients with prior interventions, comorbidities, or malignant versus benign biliary disease, and evaluate outcomes including resolution of obstruction, reoperation/reintervention rates, long-term hepatic function, quality of life, and cumulative healthcare utilization. For providers and payers, this research helps identify which pathways deliver durable clinical benefit with lower cumulative costs and fewer hospital readmissions across the episode of care covered by the DRG.
    • Post-discharge outcomes and care-transition research focusing on readmission prevention, outpatient drainage management, and long-term surveillance after non-cholecystectomy biliary procedures, including studies of discharge protocols, home drainage/device care training, and remote monitoring. These studies target patients discharged with biliary drains, stents, or at higher risk for recurrent cholangitis—measuring 30- and 90-day readmissions, emergency visits, patient-reported outcomes, and total post-acute care costs. Results inform discharge planning, bundled-payment strategies, and payer decisions about coverage for home nursing or early outpatient follow-up that can reduce costly readmissions and improve value under fixed DRG payments.

    Related Codes

    405-PANCREAS-LIVER-AND-SHUNT-PROCEDURES-WITH-MCC

    Pancreas, Liver and Shunt Procedures with MCC: Inpatient Reimbursement Overview

    406-PANCREAS-LIVER-AND-SHUNT-PROCEDURES-WITH-CC

    Pancreas, Liver and Shunt Procedures with CC: Inpatient Reimbursement Overview

    407-PANCREAS-LIVER-AND-SHUNT-PROCEDURES-WITHOUT-CC-MCC

    Pancreas, Liver and Shunt Procedures without CC/MCC: Inpatient Reimbursement Overview

    408-BILIARY-TRACT-PROCEDURES-EXCEPT-ONLY-CHOLECYSTECTOMY-WITH-OR-WITHOUT-C-D-E-WITH-MCC

    Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. with MCC: Inpatient Reimbursement Overview

    410-BILIARY-TRACT-PROCEDURES-EXCEPT-ONLY-CHOLECYSTECTOMY-WITH-OR-WITHOUT-C-D-E-WITHOUT-CC-MCC

    Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E.: Inpatient Reimbursement Overview

    411-CHOLECYSTECTOMY-WITH-C-D-E-WITH-MCC

    Cholecystectomy with C.D.E. with MCC: Inpatient Reimbursement Overview

    412-CHOLECYSTECTOMY-WITH-C-D-E-WITH-CC

    Cholecystectomy with Common Duct Exploration with Complication or Comorbidity: Inpatient Reimbursement Overview

    413-CHOLECYSTECTOMY-WITH-C-D-E-WITHOUT-CC-MCC

    Cholecystectomy with C.D.E. without CC/MCC: Inpatient Reimbursement Overview

    414-CHOLECYSTECTOMY-EXCEPT-BY-LAPAROSCOPE-WITHOUT-C-D-E-WITH-MCC

    Cholecystectomy Except by Laparoscope without C.D.E. with MCC: Inpatient Reimbursement Overview

    415-CHOLECYSTECTOMY-EXCEPT-BY-LAPAROSCOPE-WITHOUT-C-D-E-WITH-CC

    Cholecystectomy Except by Laparoscope without C.D.E. with CC: Inpatient Reimbursement Overview

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    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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    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.