Summary & Overview
CPT 44955: Appendectomy Performed Incident to Another Major Procedure
CPT code 44955 denotes an appendectomy performed incident to another major surgical procedure. It is used when the surgeon removes the appendix during the course of a separate primary operation to relieve pain, treat active inflammation or scarring, or prevent appendix rupture. This code is clinically significant because incidental appendectomy can affect operative time, intraoperative risk profiles, and hospital billing across surgical specialties.
Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will learn the clinical context for use of CPT code 44955, the typical sites of service where the procedure is delivered, and the types of scenarios in which an appendectomy would be coded as incidental to another major procedure. The publication also outlines common modifiers associated with surgical billing and highlights where data was unavailable in the input.
The content is intended to inform coding professionals, surgical departments, and payer policy analysts about the code's purpose and operational considerations at a national level. Data not available in the input is noted where applicable, and readers will find concise guidance on the clinical meaning and administrative implications of CPT code 44955 without state-specific references.
Billing Code Overview
CPT code 44955 describes the removal of the appendix, a saclike structure in the right lower quadrant at the junction of the large and small intestines, when that appendectomy is performed incident to another major procedure. The procedure is performed to relieve pain, address active inflammation or scarring from prior inflammation, or to prevent rupture.
Service type: Surgical procedure (appendectomy performed incident to another major procedure)
Typical site of service: Inpatient or outpatient hospital operating room, or ambulatory surgical center, depending on the concurrent major procedure and clinical setting.
Clinical & Coding Specifications
Clinical Context
A 42-year-old male undergoing an elective right hemicolectomy for a colonic neoplasm has an incidental, chronically inflamed appendix noted intraoperatively. The surgical team performs an appendectomy concurrently to prevent future appendicitis and eliminate a potential source of infection. The patient arrives to the operating room after preoperative assessment and consent for the planned colon resection with possible additional procedures. General endotracheal anesthesia is administered. After mobilization of the colon and identification of the appendix at the cecal base, the surgeon ligates the mesoappendix and divides the appendix, removing it en bloc during the primary abdominal procedure. The specimen is sent for pathology. Postoperative care includes routine recovery in the post-anesthesia care unit, monitoring for bowel function, wound care, pain control, and discharge planning once criteria are met. Billing captures the incidental appendectomy with 44955 reported as an add-on to the primary major procedure in accordance with payer policy and modifier guidance.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
51 | Multiple procedures | When reporting 44955 in addition to another major procedure to indicate multiple procedures during the same session |