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HCUP Calendar - Database and Product Releases
This calendar provides information on HCUP database and product releases, which are developed by AHRQ through a Federal-State-Industry partnership.
HCUP Database and Product Releases


Updated 1/21/20

State databases are released on a monthly basis (Database year: State). Information on obtaining them is available at the HCUP Central Distributor.
National Databases State Databases
National Inpatient Sample (NIS)
  • NEW December 2019: 2017 NIS
Kids' Inpatient Database (KID)
  • September 2018: 2016 KID
Nationwide Readmissions Database (NRD)
  • NEW December 2019: 2017 NRD
Nationwide Emergency Department Sample (NEDS)
  • NEW December 2019: 2017 NEDS
Nationwide Ambulatory Surgery Sample (NASS)
  • NEW December 2019: 2017 NASS
State Inpatient Databases (SID)
  • NEW January 2020:
    • 2018: CA
  • Prior releases:
    • 2017: AK
    • 2016: AK
    • 2015: AK

State Ambulatory Surgery and Services Database (SASD)
  • NEW January 2020:
    • 2018: CA

State Emergency Department Database (SEDD)
  • NEW January 2020:
    • 2018: CA
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Tools and Software Releases
Updated 1/21/20
December 2019 Cost-to-Charge Ratio Files for the 2017 National Inpatient Sample (NIS)

Cost-to-Charge Ratio Files for the 2017 Nationwide Readmissions Database (NRD)

New information has been released in HCUP Fast Stats - Hurricane Impact on Hospital Use. This topic presents the percent change in population-based inpatient and emergency department utilization rates pre- versus post-hurricane for 11 U.S hurricanes between 2005 and 2017. Additionally, new data for 2017 through 2019 has been released in the State Trends in Hospital Use by Payer topic.
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Publication Releases
Updated 1/21/20
December 2019 Methods Report 2019-04: Conducting County-Level Analyses With HCUP Data: Approaches and Methodological Considerations (PDF file, 738 KB)

Methods Report 2019-03: User Guide: An Examination of Expected Payer Coding in HCUP Databases (Updated for 2017 HCUP Data (PDF file, 607 KB)
Supplements 1-3 (PDF file, 1.2 MB)
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Internet Citation: HCUP Databases and Product Releases. Healthcare Cost and Utilization Project (HCUP). January 2020. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 1/21/20