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  1. HCUP Supplemental Variables for Revisit Analyses

    hcup-us.ahrq.gov/toolssoftware/revisit/revisit.jsp
    October 01, 2024 - NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … For data years 2003-2008, the revisit variables are stored in separate supplemental files. … These files are unique within state and data year. … The 2003-2008 Supplemental Revisit Files are available in ASCII format.

  2. HCUP Central Distributor User Guide (pdf file)

    hcup-us.ahrq.gov/pdf/HCUP_Central_Distributor_User_Guide.pdf
    January 01, 2024 - Market Structure (HMS) Files* • NIS-Trend Weights Files (1993-2011)** • NIS Hospital Ownership Files … HCUP Cost-to-Charge Ratio Files HCUP Cost-to-Charge Ratio (CCR) Files are hospital-level files designed … Files page. … or severity files, and support files such as database documentation. … Files that do not need a password (e.g., supplemental CCR files) do not have an asterisk.

  3. Research Tools

    hcup-us.ahrq.gov/tools_software.jsp
    July 01, 2025 - broadly defined surgeries that include diagnostic invasive procedures HCUP Supplemental Files … The HCUP Supplemental Files are available for use with the HCUP databases to enhance a researcher's … These files are not applicable to other administrative databases.   … later years   For Use with Nationwide and State Databases Cost-to-Charge Ratio (CCR) Files … link provided for the supplemental file details. *** Recent years included in core database files

  4. NASS Database Documentation Archive

    hcup-us.ahrq.gov/db/nation/nass/nassarchive.jsp
    December 01, 2024 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … QUERY TOOLS NASS Database Documentation Archive   Description of NASS Files

  5. Procedure Classes 2015

    hcup-us.ahrq.gov/toolssoftware/procedure/procedure.jsp
    July 01, 2025 - NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … The Procedure Classes files are updated each year. … These alphanumeric codes are enclosed in quotation marks in the translation files.

  6. NRD Overview

    hcup-us.ahrq.gov/nrdoverview.jsp
    July 01, 2025 - NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … The files are compressed and encrypted with 7-Zip©. … The NRD files loaded into SAS are about 55 GB. … The NRD files loaded into SPSS are to be about 40 GB (under estimate).

  7. HCUP Healthcare Cost and Utilization Project (pdf file)

    hcup-us.ahrq.gov/db/state/siddist/West_Virginia_SID_2009-2021_Skinny_Files.pdf
    January 01, 2021 - years starting 2009 through 2021 at the request of the West Virginia Partner Year-specific skinny files … Users who previously purchased these files can request the skinny files free of charge by emailing HCUP … The load programs for using these skinny files will be included with the data provided. … Purchasers can link the year-specific skinny files to the Core file in the same data year by using data … Although the 2015 West Virginia SID data files are split by coding system (January-September [Q1-Q3]

  8. NEDS Database Documentation Archive

    hcup-us.ahrq.gov/db/nation/neds/nedsarchive.jsp
    February 01, 2025 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … QUERY TOOLS NEDS Database Documentation Archive   Description of NEDS Files

  9. KID Database Documentation Archive

    hcup-us.ahrq.gov/db/nation/kid/kidarchive.jsp
    February 01, 2025 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … DATA QUERY TOOLS KID Database Documentation Archive   Description of KID Files

  10. HCUP-US Central Distributor Stata Load Programs

    hcup-us.ahrq.gov/stataload/stataload_search.jsp
    August 01, 2025 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … year specific notes: Starting with data year 2021, the Stata load programs for the AHA Linkage Files

  11. Create New Variables from Detailed Charges – Draft Workplan (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/UserGuideNISSupplementalDischarge-LevelFiles20150526.pdf
    May 01, 2015 - NIS files. … files on a single DVD. … files). … Files. … After the files are uncompressed, the *.exe files can be deleted.

  12. Publications

    hcup-us.ahrq.gov/reports/pubs_rpts.jsp
    February 01, 2025 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ

  13. HCUP-US Publications Advanced Search

    hcup-us.ahrq.gov/reports/pubsearch/advanced.jsp
    May 01, 2020 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … (CCR) Elixhauser Comorbidity Software Fast Stats HCUPnet Hospital Market Structure Files (HMS

  14. Central Distributor SEDD Description of Data Elements By Year

    hcup-us.ahrq.gov/db/state/sedddist/sedddist_ddeavailbyyear.jsp
    June 01, 2025 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ

  15. Healthcare Cost and Utilization Project (HCUP) NASS Notes

    hcup-us.ahrq.gov/db/vars/amonth/nassnote.jsp
    August 01, 2019 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … In the 1988-1997 data, AMONTH is retained on the HCUP files and is set to unavailable from source (.B

  16. HCUP-US Central Distributor SAS Load Programs - State

    hcup-us.ahrq.gov/sasload/sasload_search.jsp
    August 01, 2025 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … Data year specific notes: Starting with data year 2021, the SAS load programs for the AHA Linkage Files

  17. HCUP-US SEDD Overview

    hcup-us.ahrq.gov/seddoverview.jsp
    July 01, 2025 - NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … States make their SEDD files available for purchase through the HCUP Central Distributor . … Composition and completeness of data files may vary from State to State.

  18. HCUP Central Distributor Load Programs - Nationwide

    hcup-us.ahrq.gov/db/nation/stataloadprog.jsp
    December 01, 2024 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ … Stata load programs are used to load the ASCII or CSV data files into Stata.

  19. NEDS Overview

    hcup-us.ahrq.gov/nedsoverview.jsp
    July 01, 2025 - NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … several discharge-level files and one hospital-level file: Discharge-Level files Core … The files are compressed and encrypted with 7-Zip©. … The NEDS files loaded into SAS are about 82 GB.

  20. Data Visualizations

    hcup-us.ahrq.gov/datavisualizations.jsp
    February 01, 2025 - and ICD-9-CM Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files … NIS-Trend Weights Files NIS Hospital Ownership Files NIS 1993-2002 Discharge-Level Supplemental … Files KID-Trend File Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses American Hospital Association (AHA) Linkage Files AHRQ
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