Summary & Overview
CPT 27498: Fasciotomy of Multiple Compartments, Thigh and/or Knee
CPT code 27498 denotes a surgical fasciotomy of multiple compartments in the thigh and/or knee to relieve pressure and improve perfusion. Nationally, this code represents an emergent or urgent limb-saving procedure commonly used for acute compartment syndrome and other ischemic conditions of the lower extremity. Its appropriate use affects surgical quality metrics, hospital resource allocation, and downstream rehabilitation needs.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for when the procedure is performed, typical sites of service, and payer relevance. The publication summarizes expected benchmarks where available, outlines common billing considerations (including frequently applied modifiers), and highlights policy and coverage factors that influence utilization and payment. Clinical context explains the role of fasciotomy in limb salvage and perioperative implications. Where input data is missing, the publication indicates those limits explicitly. This national-level summary is designed for clinicians, coding professionals, and policy analysts seeking a clear, practical reference for CPT code 27498.
Billing Code Overview
CPT code 27498 describes a surgical fasciotomy of multiple compartments in the thigh and/or knee to relieve elevated compartmental pressure and restore blood flow. This procedure is a form of surgical decompression performed on the lower extremity compartments, typically indicated in acute compartment syndrome or similar ischemic conditions.
-
Service type: Surgical procedure (lower extremity compartment fasciotomy)
-
Typical site of service: Hospital operating room or emergency surgical suite
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to the emergency department or surgical service with an acutely swollen, painful thigh or knee compartment after trauma (eg, tibial plateau fracture, femoral fracture, crush injury), reperfusion after vascular repair, or progressive exertional compartment syndrome unresponsive to conservative care. The patient has severe pain out of proportion to exam, pain with passive stretch of muscles, tense swelling, paresthesia, and possibly diminished distal pulses. Initial evaluation includes focused history and physical, compartment pressure measurement when diagnosis is uncertain, neurovascular assessment, and resuscitation as needed. Once compartment syndrome of the thigh and/or knee is diagnosed, the orthopedic or vascular surgeon obtains informed consent and proceeds to the operating room (typically under general or regional anesthesia) for fasciotomy of the affected compartments. The procedure involves longitudinal skin incisions, dissection to fascia, and release of the multiple fascial compartments in the thigh and/or around the knee to relieve intracompartmental pressure and restore perfusion. Postoperative care includes wound management (often delayed primary closure or negative pressure wound therapy), serial neurovascular checks, pain control, infection prophylaxis, and planning for possible subsequent procedures such as debridement, delayed closure, skin grafting, or fixation of associated fractures. Common sites of service are the operating room in an inpatient or hospital outpatient surgical setting, and occasionally the emergency department for emergent bedside fasciotomy when transport is unsafe.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|