CPT® Code 45190

Destruction of rectal tumor (eg, electrodesiccation, electrosurgery, laser ablation, laser resection, cryosurgery) transanal approach

The CPT® Code 45190 refers to the procedure for the destruction of a rectal tumor using a transanal approach. This procedure encompasses various techniques such as electrodesiccation, electrosurgery, laser ablation, laser resection, and cryosurgery. In this context, the term "destruction" indicates the removal or eradication of the tumor through different methods that utilize heat, cold, or other forms of energy. The transanal approach involves accessing the rectal area through the anus, allowing for direct visualization and treatment of the tumor. During the procedure, the sphincter is carefully stretched, and anal retractors are applied to provide a clear view of the tumor. The lesion is thoroughly examined to determine the most suitable method of destruction. Techniques such as injecting saline or epinephrine into the submucosa beneath the tumor may be employed to elevate the lesion and minimize bleeding during the procedure. The area designated for destruction includes not only the tumor itself but also a margin of healthy tissue surrounding it to ensure complete removal. Each destruction method has its specific mechanism: electrodessication utilizes a high-frequency electric current to destroy the tumor, while electrosurgery applies heat through a metal probe or needle. Laser ablation employs a laser to vaporize the tumor, and laser resection involves excising the tumor with a CO2 laser. Cryosurgery, on the other hand, involves freezing the lesion with liquid nitrogen, often requiring multiple freeze-thaw cycles to achieve complete destruction. This comprehensive approach to tumor destruction is critical for effective treatment and management of rectal tumors.