When Your Baby's in the NICU (Neonatal Intensive Care Unit) When Your Baby's in the NICU (Neonatal Intensive Care Unit) When Your Baby's In the NICU When Your Baby’s in the NICU. KidsHealth When Your Baby’s in the NICU NICU neonatal intensive care unit (NICU) intensive care Learn More About the NICU When Your Baby's in the NICU (Neonatal Intensive Care Unit) Neonatal Intensive Care Unit Kid’sHealth: What are NICUs For? NICU