Can the insurance company check the hospitalization records of the child before he is named?

It should be possible to check. Although the baby does not have a name when he is hospitalized, the parents' names and ID numbers will be recorded. Personally, I suggest you tell the truth. Otherwise, even if you conceal the insurance for a while, if you are in danger in the future, you may not be able to pay the compensation normally because of this concealment, which is not worth the loss.