Final answer:
The total billable units for a treatment session that involves 5 minutes of performing ultrasound and 7 minutes of manual therapy could be approximately 1 or 2 units, depending on specific billing codes and insurance policy guidelines.
Step-by-step explanation:
The question pertains to the total units that can be billed for a treatment session consisting of performing ultrasound and providing manual therapy. The time spent on each activity (5 minutes on ultrasound and 7 minutes on manual therapy) can be combined to determine the total units. However, specific billing codes and insurance policies will affect the actual number of billable units. For example, the American Physical Therapy Association provides guidelines for billing in 15-minute increments, meaning that services under 8 minutes may not be billable on their own. Therefore, without additional context on the specific billing practices, an approximate answer would be either 1 unit, combining the two services (if allowed), or more routinely, 2 units total, as the time exceeds 15 minutes when combined.