AHA Coding Clinic® for HCPCS - 2020 Issue 1

Photodynamic therapy

Photodynamic therapy is a treatment modality that utilizes photosensitized agents (light activated drugs) in combination with a type of light, for example via laser, LED lamp, intense pulsed light devices, etc., that when exposed at a specific wavelength, creates an oxygen that is toxic to the targeted cells. Once the photosensitizer drug is administered, it is retained in the diseased tissue to a greater degree than normal tissue. When activated by light, the drug works to treat the diseased tissue. This type of treatment may be utilized to treat various forms of cancers and pre-malignant lesions such as skin...

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