Medicaid covers genetic screening?

So my best friend who is also pregnant has Humana Medicaid, just like me. She has already had her genetic screening done and it was completely covered by her insurance. But I just called Humana and they told me that it would only be covered if it was needed for a medical reason? I’m so confused because I know my friend didn’t have a medical reason and hers was fully covered. Should I just get the screening and hope for the best?