CPT® Code 26593

The procedure described by CPT® Code 26593 involves the release of the intrinsic muscles of the hand, which are essential for fine motor control and dexterity. The intrinsic muscles are categorized into four distinct groups: the thenar muscles, which control thumb movements; the hypothenar muscles, which manage movements of the small finger; the lumbrical muscles, which facilitate the flexion of the metacarpophalangeal joints and extension of the interphalangeal joints; and the interossei muscles, which are responsible for the abduction and adduction of the fingers. This procedure is typically indicated when there are muscle imbalances, contractures, or deformities in the hand, often resulting from adhesions or scar tissue. The surgical approach involves making an incision over the affected muscle, carefully dissecting the surrounding soft tissues to expose the muscle, and excising any adhesions or scar tissue that may be contributing to the dysfunction. In some cases, the muscle may need to be detached from its bony attachments to effectively address the contracture or imbalance. After the release, the range of motion is assessed to confirm that the desired correction has been achieved before closing the soft tissues in layers. Each intrinsic muscle that is released during this procedure should be reported separately for accurate coding and billing purposes.