CPT® Code 28304

The procedure described by CPT® Code 28304 involves an osteotomy of the tarsal bones, specifically targeting the navicular, cuboid, and/or cuneiform bones, excluding the calcaneus or talus. This surgical intervention is primarily indicated for the correction of congenital or acquired deformities of the foot, such as pes cavus, which is characterized by an excessively high arch. The term "midtarsal osteotomy" is often used to refer to this type of procedure, highlighting its focus on the midtarsal region of the foot. In this specific code, the osteotomy is performed without the use of bone autograft, distinguishing it from other procedures that may require grafting. The surgical technique involves careful exposure of the targeted bones while ensuring the protection of surrounding nerves, blood vessels, and tendons. The procedure typically includes making precise cuts in the bone to facilitate the realignment of the foot, thereby correcting the deformity. The apex of the V-shaped osteotomy is strategically oriented at the apex of the pes cavus, which is usually located at the navicular bone. Following the osteotomy, the forefoot is shifted in a dorsal direction to elevate it and achieve the desired correction. Radiographic verification of alignment is performed, and pins are placed to maintain the foot's position during the healing process.