This dataset provides information related to mothers with a live birth during the time period 07/2016 to 07/2020 and having an ER visit within two years prior to the delivery. It contains information about the total number of mothers grouped by county of residence at the time of delivery. ER visit related claims are defined as claims with at least one of the following CPT procedure codes: 99281, 99282, 99283, 99284, 99285. This data is for research purposes and is not intended to be used for reporting. Due to differences in geographic aggregation, time period considerations, and units of analysis, these numbers may differ from those reported by FSSA.