Summary & Overview
CPT 47122: Hepatectomy, Trisegmentectomy for Liver Neoplasm
CPT code 47122 denotes a major hepatic surgical procedure — a hepatectomy that includes a trisegmentectomy resecting large lesions from three segments of the left hepatic lobe plus the anterior segment of the right liver. The code applies to treatment of both benign and malignant liver neoplasms and represents a complex, resource-intensive operative service with implications for perioperative care, facility utilization, and specialist surgical coding.
Key payers covered in this national overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for when CPT code 47122 is used, typical sites of service, and the procedural scope that distinguishes it from smaller hepatic resections. The publication outlines expected billing considerations, common modifiers for major surgical services, and areas where coding precision affects coverage and claims processing.
This summary equips clinicians, coding professionals, and policy analysts with a concise reference to the code’s clinical intent and operational setting, helping align documentation and billing practices with payer expectations. Data not available in the input for specific payer reimbursement rates, ICD-10 pairings, associated taxonomies, and related codes.
Billing Code Overview
CPT code 47122 describes a hepatectomy involving surgical resection of portions of the liver. The procedure includes a trisegmentectomy in which large lesions are resected from three segments of the left hepatic lobe along with the anterior segment of the right liver. It is performed for treatment of both benign and malignant hepatic neoplasms.
Service Type: Surgical resection of liver tissue (hepatectomy/trisegmentectomy)
Typical Site of Service: Hospital operating room or ambulatory surgical center with inpatient admission as indicated for major hepatic surgery
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with a history of colorectal cancer presents with a solitary metastatic liver lesion in the left hepatic lobe and an adjacent large benign-appearing hemangioma involving three contiguous segments. After multidisciplinary tumor board review and preoperative imaging (contrast-enhanced CT and MRI), the hepatobiliary surgeon schedules an open hepatic resection: a left trisegmentectomy including three segments of the left lobe plus the anterior segment of the right lobe to achieve negative margins while preserving adequate future liver remnant. The clinical workflow includes preoperative evaluation (history, labs with liver function tests and coagulation studies), imaging review, informed consent, anesthesia evaluation, intraoperative ultrasound to delineate lesion borders, parenchymal transection and hemostasis, drain placement as indicated, postoperative monitoring in a step-down or ICU setting depending on remnant function, pain control, and follow-up imaging to assess for recurrence or complications.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal (primary) procedure | When this hepatectomy is the primary service performed during the operative session. |
22 | Increased procedural services |