Severe maternal morbidity (SMM) is a constellation of pregnancy factors that negatively impact a woman’s health. Nearly one-half of maternal mortality and morbidity is preventable and readiness and recognition of severe events is critical. The National Perinatal Information Center began reporting on Severe Maternal Morbidity (SMM) in 2015, particularly surrounding AIM measures SMM Among Hemorrhage Cases and SMM Among Preeclampsia Cases. This Special Analysis is an intentional focus on SMM.