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HCUP Central Distributor File Specifications - State

Each year of each State database (SID, SASD, SEDD) is comprised of the core data file and one or more additional files, in ASCII text (ASC) format. Additional files may include Diagnosis and Procedure Groups, AHA Linkages, Charges, and/or Severity, depending on the state, data year, and database requested. File specifications are provided by year, by State, by database, and include the dataset name, number of records, and record layout for the ASC files. A zip file containing the file specifications for current and/or previous versions of databases and years is also provided.

Select a State, data year, and database, then click the Find button.
If using 2009 SID, please refer to Known Data Issues regarding change in available data elements (2009 SID Multiple States).

To download a ZIP file containing all states and all years, please select below:

Internet Citation: HCUP Central Distributor File Specifications. Healthcare Cost and Utilization Project (HCUP). 01 2024. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 01/12/24