I think the insurance should cover, but check your policy that was given to you or ask your agent. Even in public hospitals, NICU is probably about $1000/day, so it’s probably even more in TMC.
Congratulations on your beautiful baby! It’s not easy to have your little one go to NICU. My first daughter had to go to NICU for a few hours, and although the duration was not long, I was anxious. Just said a little prayer for your baby. Hang in there and recover/rest well from your labour ❤️