AHRQ has released new information in HCUP Fast Stats—Neonatal Abstinence Syndrome (NAS) Among Newborn Hospitalizations. This new topic provides trends in NAS-related newborn hospitalizations at the national level and for 45 States and the District of Columbia, representing over 95 percent of the U.S. population. Rates of NAS per 1,000 newborn hospitalizations are presented overall as well as by sex, expected payer, community-level income, and patient location. The number of NAS newborn hospitalizations, median hospitalization cost (actual and inflation-adjusted), and median length of stay are also presented overall.