CPT® Code 21049

Excision of benign tumor or cyst of maxilla; requiring extra-oral osteotomy and partial maxillectomy (eg, locally aggressive or destructive lesion[s])

The procedure described by CPT® Code 21049 involves the excision of a benign tumor or cyst located in the maxilla, which is the upper jawbone. This procedure is specifically indicated when the tumor or cyst is locally aggressive or destructive, necessitating a more extensive surgical approach. The term "extra-oral osteotomy" refers to the surgical cutting of bone from outside the mouth, which is required in this case to effectively remove the tumor or cyst along with a portion of the maxilla. The procedure may also involve a partial maxillectomy, which is the surgical removal of part of the maxilla. The physician may choose between an intraoral approach, where an incision is made inside the mouth, or an extraoral approach, where an incision is made outside the mouth. The choice of approach depends on the location and extent of the lesion. After the tumor is excised, the surgical site may require packing and closure, and in some cases, a bone graft may be necessary to support the structure of the maxilla. The final step involves suturing the incisions in layers to promote proper healing.