Summary & Overview
CPT 49594: Repair of Incarcerated or Strangulated Anterior Abdominal Hernia (3–10 cm)
CPT code 49594 defines the initial operative repair of one or more anterior abdominal hernias with a total defect length of 3 cm to 10 cm when the hernias are incarcerated or strangulated. This code encompasses any surgical approach and permits implantation of mesh or other prosthetic material. It is used for urgent or emergent hernia repairs where tissue entrapment or compromised blood flow elevates clinical risk and resource use.
Key payers included in national analyses typically comprise Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Coverage and coding policies from these payers influence prior authorization requirements, inpatient versus outpatient site determinations, and bundling rules that affect payment and claim adjudication.
Readers will learn the clinical context for using CPT code 49594, the typical service settings where it is billed, and the kinds of benchmarking and policy considerations that affect reimbursement and utilization. The publication outlines common billing modifiers and related administrative considerations (where available), summarizes typical payer coverage approaches, and highlights clinical factors—such as incarceration or strangulation and the potential need for mesh—that drive the selection of this code. Data not available in the input will be noted where applicable.
Billing Code Overview
CPT code 49594 describes the initial surgical repair of one or more anterior abdominal hernias with a combined fascial defect length of 3 cm to 10 cm when the hernias are incarcerated or strangulated. The code covers any surgical approach and allows for the implantation of mesh or other prosthetic material as part of the repair.
Service type: Surgical — emergency/urgent hernia repair
Typical site of service: Hospital operating room or ambulatory surgery center, commonly performed when incarceration or strangulation requires prompt operative management.
Clinical & Coding Specifications
Clinical Context
A 62-year-old male presents to the emergency department with acute onset severe abdominal pain, nausea, and a tender bulge in the lower anterior abdominal wall that is non-reducible. CT scan of the abdomen and pelvis demonstrates an incarcerated and partially strangulated ventral (incisional) hernia with a fascial defect measuring approximately 5 cm in greatest dimension and signs of compromised bowel within the sac. After resuscitation and broad-spectrum antibiotics are initiated, the general surgeon obtains informed consent and proceeds to the operating room for an urgent open repair. The procedure involves exploration of the hernia sac, assessment of bowel viability with resection if necrotic, and definitive fascial closure with implantation of prosthetic mesh as indicated. Typical perioperative documentation includes time of incision and closure, description of the hernia defect size (3–10 cm), findings of incarceration or strangulation, any bowel resection performed, anesthetic type, and postoperative instructions. Typical site of service is the hospital operating room; service type is urgent/emergent surgical abdominal procedure. Common payors for claims processing include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier (standard) | Use when no special modifier applies; submit procedure as billed. |