Iontophoresis (97033 CPT code) is a process in which electrically charged molecules or atoms (e.g., ions) are driven into tissue with an electric field. Voltage provides the driving force. Parameters such as drug polarity and electrophoretic mobility must be known in order to be able to assess whether iontophoresis can deliver therapeutic concentrations of a medication at sites in or below the skin.
Medical Necessity Of CPT 97033
The application of iontophoresis (CPT 97033) is considered medically necessary for the topical delivery of medications into a specific area of the body. The medication and dosage information may be recorded in the plan of treatment or maintained on a separate prescription signed by the health care provider responsible for certifying the plan of treatment.
Specific indications for the use of iontophoresis application include:
- the patient has tendonitis or calcific tendonitis;
- the patient has bursitis; or
- the patient has adhesive capsulitis.