The modifier 93 (Synchronous Telemedicine Service Rendered Via Telephone or Other Real-Time Interactive Audio-Only Telecommunications System). Modifier 93 is a new audio-only telemedicine code that is effective on Jan. 1, 2022. Modifier 93 describes services that are provided via telephone or other real-time interactive audio-only telecommunications systems. This modifier is appropriate only if the real-time interaction occurs between a physician/other qualified health care professional and a patient who is located at a distant site. When using this modifier 93, the communication during the audio-only service must be of an amount or nature that meets the same key components and/or requirements of face-to-face interaction. Addition of Appendix T This appendix is a listing of CPT codes that may be used for reporting audio-only services when appended with Modifier 93. Procedures on this list involve electronic communication using interactive telecommunications equipment that includes, at
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