Computerized physician order entry (CPOE) is the feature of electronic medical record (EMR) implementation that arguably offers the greatest quality and patient safety benefits. The gains are potentially greater for critically ill neonates, but the effect of CPOE on quality and safety is dependent upon local implementation decisions. OBJECTIVES: After completing this article, readers should be able to: Define the basic aspects of CPOE and clinical decision support (CDS) systems.Describe the potential benefits of implementing CPOE associated with CDS in a neonatal intensive care unit (NICU).