CPT® Code 11901

Intralesional injection is a medical procedure that involves the administration of a pharmacologic agent directly into a lesion or multiple lesions on the skin. This technique is particularly effective for delivering medications, such as corticosteroids, directly to the site of inflammation or abnormal tissue growth. Corticosteroids are commonly utilized in this procedure due to their anti-inflammatory properties, making them suitable for treating a variety of conditions, including acute or chronic inflammatory processes, hyperplastic and hypertrophic skin disorders, and other dermatological issues. During the procedure, a syringe filled with the chosen pharmacologic agent is equipped with a fine needle, which is then carefully inserted beneath the skin at the targeted lesion site. Once in position, the medication is injected, allowing it to disperse slowly through the dermis. This method provides prolonged localized therapy, ensuring that the medication remains effective at the site of injection for an extended period. It is important to note that CPT® Code 11901 is specifically designated for cases involving more than seven lesions, while CPT® Code 11900 is used for up to and including seven lesions.