CPT® Code 89230

The procedure described by CPT® Code 89230 refers to the process of sweat collection by iontophoresis. Iontophoresis is a technique that utilizes a mild electrical current to facilitate the introduction of specific medications, most commonly pilocarpine, into the skin. This medication acts as a stimulant to induce sweating. During the procedure, patches containing the medication are applied to the skin, and the electrical current is used to enhance the absorption of pilocarpine, leading to increased sweat production. The sweat that is collected is then analyzed to assist in the diagnosis of various medical conditions, particularly cystic fibrosis, among other disorders. This method is significant in clinical settings as it provides a non-invasive means to gather sweat samples for diagnostic testing, which can be crucial for patient management and treatment planning.