CPT® Code 27498

Decompression fasciotomy is a surgical procedure aimed at alleviating the pressure within muscle compartments, specifically in the thigh and/or knee regions, to treat a condition known as compartment syndrome. Compartment syndrome occurs when swelling within a muscle compartment leads to increased pressure, which can compress blood vessels and nerves, potentially resulting in severe complications such as permanent muscle and nerve damage. The muscle compartments are encased in fascia, a dense connective tissue that does not stretch, thereby limiting the space available for the muscles and other structures within. In the thigh and knee area, there are three primary compartments: the flexor compartment, the extensor compartment, and the adductor (medial) compartment. The procedure described by CPT® Code 27498 involves the decompression of multiple compartments, which is critical when the pressure within these compartments becomes dangerously elevated. The surgical approach typically includes making an incision over the lateral aspect of the thigh, allowing access to the affected compartments for evaluation and intervention. This procedure is essential for preventing irreversible damage to the muscles and nerves due to prolonged pressure, thereby preserving function and mobility in the affected limb.