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CPT Code 97035 | Ultrasound Therapy

CPT code 97035 can be used when a physical therapist or other healthcare provider performs ultrasound therapy on one or more areas of the body for 15 minutes.

What Is CPT Code 97035?

CPT code 97035 describes the application of ultrasound therapy to one or more areas of the body.

97035 refers to a modality that uses high or low-frequency sound waves to treat various conditions, including sprains, strains, and tendinitis.

This code can be billed for multiple areas simultaneously and has to be reported for units of 15 minutes.


The CPT book describes CPT code 97035 as: “Application of a modality to 1 or more areas; ultrasound, every 15 minutes.”


Physical therapists are healthcare professionals who specialize in diagnosing, treating, and managing musculoskeletal conditions.

They use a variety of treatment modalities to help patients recover from injuries and conditions that affect their muscles, bones, and joints. One such modality that physical therapists commonly use is ultrasound therapy.

Ultrasound machines use high or low-frequency sound waves to treat various conditions, including sprains, strains, and tendinitis.

The sound waves are transmitted to the target area via a water bath or ultrasound gel/lotion and help to increase circulation and promote healing.

The sound waves penetrate deep into the muscles, causing deep tissue warming. This warming effect helps to relax the tissue, remove muscle tightness, trigger vessel vasodilation, and increase blood flow to the healing area.

Ultrasound therapy is a non-invasive and painless procedure that can be used to treat a wide range of conditions. It can reduce inflammation, increase the range of motion, and promote the healing of soft tissue injuries. It can also be used to reduce pain and muscle spasms and to improve circulation.

Physical therapists may also use ultrasound therapy with other treatment modalities, such as exercise, manual therapy, and electrical stimulation or heat therapy, to enhance the healing process.

The duration and frequency of ultrasound therapy sessions will depend on the treatment condition and the patient’s needs. Still, treatments are typically given 1-2 times per week for several weeks.

How To Use CPT 97035

CPT code 97035 is primarily used to treat conditions such as inflammation of periarticular structures, neuromas, pain, muscle spasms, contractures, and softened adhesive scars.

The treatment should be four treatments per week and continue for up to one month.

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