Modifier 93- Synchronous Telemedicine Service Rendered Via Telephone or Other Real-Time Interactive Audio-Only Telecommunications System

Modifier 93 is used to identify synchronous telemedicine services provided through real-time interactive audio-only communication when allowed by payer policy.

What is Modifier 93?

Modifier 93 identifies telemedicine services furnished through real-time, interactive audio-only communication between the provider and the patient. It is reported when an eligible service is delivered without video technology and payer guidelines permit audio-only telehealth billing. Modifier 93 helps distinguish these services from traditional in-person visits and audio-video telemedicine encounters.

When to Use Modifier 93

• An eligible telemedicine service is provided using real-time audio-only communication.

• The patient and provider communicate live by telephone or another interactive audio-only system.

• The payer allows reporting Modifier 93.

• Documentation supports the telemedicine encounter and medical necessity.

Billing Example

A physician conducts a medically necessary follow-up visit with an established patient using a real-time telephone conversation because video technology is unavailable. When payer requirements are met, Modifier 93 is appended to the eligible service.

Documentation Tips

• Document that the service was provided using real-time audio-only communication.

• Record the date, time, and duration of the encounter.

• Include the patient's medical history, assessment, and treatment plan.

• Verify payer-specific telehealth billing requirements before submitting the claim.

Common Denial Reasons

• The reported service is not eligible for Modifier 93.

• Documentation does not support an audio-only encounter.

• Payer does not recognize Modifier 93.

• Required telehealth documentation is incomplete.

Related Modifiers

Modifier 95

Modifier GT

Modifier GQ

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