The Healthcare Cost and Utilization Project (HCUP) 2020 Nationwide Emergency Department Sample (NEDS) and Cost to Charge Ratio (CCR) Files (NEDS CCR) are now available. The NEDS is the largest publicly available all-payer emergency department (ED) database in the United States. It enables analyses of ED utilization patterns and supports public health professionals, administrators, policymakers, and clinicians in their decision making regarding this critical source of care. The HCUP NEDS CCR Files can be used to estimate the cost of resource use for ED visits based on the reported total charge and the cost-to-charge ratios provided in the supplemental files.

Constructed using records from the HCUP State Inpatient Databases (SID) and State Emergency Department Databases (SEDD), the NEDS provides information on patients admitted to the hospital through the ED and on patients treated and released or transferred to another hospital from the ED. The 2020 NEDS contains data from more than 28 million ED visits in 40 States and the District of Columbia, approximating a 20 percent stratified sample of hospital-owned EDs in the United States. Weighted, the NEDS estimates roughly 123 million ED visits in the United States.

The 2020 NEDS and corresponding CCR files (NEDS CCR) can be purchased through the HCUP Central Distributor. Additional information is located on the NEDS Overview and the HCUP Cost-to-Charge Ratio (CCR) Files homepages.