Summary & Overview
CPT 49591: Initial Repair of Small Reducible Anterior Abdominal Hernia
CPT code 49591 denotes the initial repair of one or more reducible anterior abdominal hernias with a total length under 3 cm, using any surgical approach and allowing for mesh or other prosthesis implantation. This code captures a common, low-complexity hernia repair that is frequently performed in ambulatory surgical centers and hospital operating rooms. Its correct use affects coding accuracy, provider reimbursement, and quality measurement for hernia care across the U.S.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, common billing modifiers and considerations, and the primary settings where services are delivered. The publication outlines coding scope and typical documentation elements associated with small, reducible anterior hernia repairs.
The report provides benchmarks and policy-relevant notes useful for billing administrators, surgical practice managers, and payers reviewing claims for appropriate surgical coding. It highlights what constitutes an initial repair versus subsequent or recurrent procedures and clarifies the applicability of prosthetic implantation within the definition of the service. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 49591 describes the initial surgical repair of one or more anterior abdominal hernias with a total length of less than 3 cm. The hernias are reducible, and the procedure may be performed using any surgical approach. The provider may implant mesh or another prosthesis as part of the repair.
Service type: Surgical repair of anterior abdominal hernia (initial, small, reducible)
Typical site of service: Outpatient surgical center or hospital operating room
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to a general surgery clinic with a small, reducible anterior abdominal wall hernia less than 3 cm in total length, such as a small umbilical or epigastric defect. Symptoms include an intermittent bulge, mild localized discomfort with coughing or straining, and no signs of bowel obstruction or strangulation. Physical exam demonstrates a palpable fascial defect <3 cm that reduces with manual pressure. Preoperative evaluation includes history, focused physical exam, routine labs as indicated, and surgical consent discussing open versus minimally invasive repair and potential mesh implantation.
The clinical workflow proceeds with preoperative marking and anesthesia evaluation (typically local with sedation or general anesthesia depending on patient factors). The surgeon performs an open or laparoscopic approach to repair the defect, reduces herniated contents, achieves fascial closure, and may place a prosthetic mesh for reinforcement. Intraoperative documentation captures approach, size of defect (total length <3 cm), reducibility, use of mesh (type and placement), and any unexpected findings. Postoperative instructions include wound care, activity restrictions, pain control, and follow-up for wound check and return to activity planning. Typical site of service is an ambulatory surgery center or hospital outpatient surgical unit.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — full physician service |