What is the term for procedures where no instruments enter the body?

The term for procedures where no instruments enter the body is "noninvasive procedures." These types of procedures allow for medical assessments or treatments without penetrating the skin or entering a body cavity. Noninvasive techniques often involve external examinations, imaging methods such as ultrasound, or surface measurements that do not require tools to be inserted into the body. This makes them particularly desirable in clinical settings, as they typically carry lower risk and require less recovery time for patients compared to invasive procedures. Invasive procedures, on the other hand, involve instruments entering the body, which can increase the risk of complications and discomfort. Additionally, diagnostic and therapeutic procedures can be either invasive or noninvasive, making them broader categories that do not specifically address the definition of procedures without bodily intrusion.