I'm going to politely disagree with the responses you've received here so far. Since even the initial consultation is a bariatric service, they want to verify that your insurance will cover it prior to scheduling. The initial consultation is a billable service. You either have coverage or you don't. The facility wants to know if insurance will pay or if you will be paying on your own. It is possible after the initial consult, that you choose not to proceed. However, they still want to know that you have coverage for that visit.
Example: my insurance policy through my employer specifically excluded any coverage for weight management and/or bariatric services until 2020. In 2019, I was aware that coverage would be added in 2020. I tried to schedule initial consultations and dietician visits to get started but was unable to unless I wanted to pay for them out of pocket. Since I did not want to self-pay. I had to wait until benefits began in 2020. Even having a conversation with my primary care doctor regarding any potential weight management had to be done as a discussion during an appointment coded as something else. Otherwise, I would have had to pay for it.
I hope this makes sense.