Using a swab of saliva from a newborn’s cheek, a new DNA test will probe the baby’s genes to search for 193 genetic diseases, like anemia, epilepsy, and metabolic disorders.

The $649 test is meant for healthy babies, as a supplement to existing screening tests.

In the US, the government recommends a newborn screening test that looks for a minimum of 34 disorders (though some states have additional requirements as well). The standard test involves a small sample of blood taken from a baby’s heel.

Eric Schadt, CEO of Sema4, the company behind the test, says some parents may want more information about their child’s genes than this standard testing delivers. Some people suffer for years before getting a proper diagnosis for some of the diseases that his company’s test covers, he says.

“If you can, at birth, canvass some of the most common disorders, you get a better understanding of the health of your child,” Schadt says. “We think parents want the best for their children and are going to do whatever they can so that their child can have the healthiest life possible.”