CPT® Code 69150

The procedure described by CPT® Code 69150 involves a radical excision of a lesion located in the external auditory canal. This surgical intervention is necessary when a lesion has begun to invade surrounding tissues, necessitating a comprehensive removal to ensure complete excision. The procedure is performed with careful attention to the facial nerve, which is critical for preserving facial function. An incision is typically made in the external auditory canal, extending towards the front of the ear and into the parotid gland area. The excision includes not only the lesion itself but also a margin of healthy tissue to ensure that any potential cancerous cells are removed. In some cases, a post-auricular incision may be utilized to facilitate the removal of the tumor at its base, which may involve the canal wall, external ear cartilage, and any other affected tissues. During the surgery, intraoperative frozen sections of the surgical margins are sent for pathological examination to confirm that all cancerous cells have been excised. If any margins are found to be positive for tumor invasion, additional piecemeal resection is performed until all visible and microscopic evidence of the tumor is eliminated. The procedure may also involve the removal of skin, soft tissue, cartilage, and bone as necessary. It is important to note that if reconstruction of the external auditory canal is required, this may be reported separately using appropriate codes, such as skin grafts. CPT® Code 69150 is specifically used when the radical excision is performed without a radical neck dissection, which is a more extensive procedure that involves the removal of lymph nodes and surrounding structures.