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  1. hcup-us.ahrq.gov/reports/statbriefs/sb60.pdf
    October 01, 2008 - listed for a hospital discharge, the first-listed payer is used. 3 HCUP Cost-to-Charge Ratio Files
  2. hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2003_SEVERITY.pdf
    January 01, 2003 - KEY can be used to link within a HCUP database, such as linking records in the Core and Charges files … KEY cannot be used to link records between HCUP inpatient and ambulatory surgery files.
  3. hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2004_Severity.pdf
    January 01, 2004 - KEY can be used to link within a HCUP database, such as linking records in the Core and Charges files … KEY cannot be used to link records between HCUP inpatient and ambulatory surgery files.
  4. hcup-us.ahrq.gov/db/nation/nass/stats/FileSpecifications_NASS_2022_Encounter.TXT
    January 01, 2022 - Data Set Name: NASS_2022_ENCOUNTER Number of Observations: 9097088 Total Number of Data Elements: 110 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 19 File name 21 - 23 Data element number 25 - 43 Data element name 45 …
  5. hcup-us.ahrq.gov/db/nation/nass/stats/FileSpecifications_NASS_2021_Encounter.TXT
    January 01, 2021 - Data Set Name: NASS_2021_ENCOUNTER Number of Observations: 8896507 Total Number of Data Elements: 105 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 19 File name 21 - 23 Data element number 25 - 43 Data element name 45 …
  6. hcup-us.ahrq.gov/db/nation/neds/stats/FileSpecifications_NEDS_2021_ED.TXT
    January 01, 2021 - Data Set Name: NEDS_2021_ED Number of Observations: 25463451 Total Number of Data Elements: 103 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 21 File name 23 - 25 Data element number 27 - 45 Data element name 47 …
  7. hcup-us.ahrq.gov/db/nation/neds/stats/FileSpecifications_NEDS_2022_ED.TXT
    January 01, 2022 - Data Set Name: NEDS_2022_ED Number of Observations: 27571671 Total Number of Data Elements: 103 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 21 File name 23 - 25 Data element number 27 - 45 Data element name 47 …
  8. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2012_Core_V2.TXT
    January 01, 2012 - Data Set Name: NRD_2012_CORE_V2 Created on 09/28/2017 Number of Observations: 13459216 Total Number of Data Elements: 122 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 24 File name 26 - 28 Data element number 30 - 48 Data …
  9. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2011_Core_V2.TXT
    January 01, 2011 - Data Set Name: NRD_2011_CORE_V2 Created on 09/28/2017 Number of Observations: 13915176 Total Number of Data Elements: 122 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 24 File name 26 - 28 Data element number 30 - 48 Data …
  10. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2016_Core.TXT
    January 01, 2016 - Data Set Name: NRD_2016_CORE Created on 07/20/2018 Number of Observations: 17197683 Total Number of Data Elements: 103 Columns Description ======== =========== 1 - 3 Database name 5 - 8 Discharge year of data 10 - 35 File name 37 - 39 Data element number 41 - 69 Data …
  11. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2013_Core.TXT
    January 01, 2013 - Data Set Name: NRD_2013_CORE Number of Observations: 14325172 Total Number of Data Elements: 122 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 19 File name 21 - 23 Data element number 25 - 43 Data element name 45 …
  12. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2010_Core_V2.TXT
    January 01, 2010 - Data Set Name: NRD_2010_CORE_V2 Created on 09/28/2017 Number of Observations: 13907610 Total Number of Data Elements: 122 Columns Description ======== =========== 1 - 4 Database name 6 - 9 Discharge year of data 11 - 24 File name 26 - 28 Data element number 30 - 48 Data …
  13. hcup-us.ahrq.gov/toolssoftware/comorbidityicd10/CMR-ChangeLog-v20221-v20231.xlsx
    December 01, 2022 - Com-ICD10CMChgLg-v20211-v20221 Table_of_Contents This Excel file enumerates the changes between the following releases of the Elixhauser Comorbidity Software Refined for ICD-10-CM diagnoses Compared versions: v2023.1 (released December 2022) to v2022.1 (released October 2021) Table of Contents Changes to the como…
  14. hcup-us.ahrq.gov/db/nation/nis/reports/2012niscomparisonrpt.jsp
    April 18, 2016 - 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. hcup-us.ahrq.gov/reports/statbriefs/sb282-COVID-19-AllHospital.pdf
    December 01, 2020 - April 7, 2020. www.cms.gov/files/document/covid-elective-surgery-recommendations.pdf. … NationalTrendsServlet https://hcup-us.ahrq.gov/reports/statbriefs/statbriefs.jsp https://www.cms.gov/files
  16. hcup-us.ahrq.gov/reports/statbriefs/sb197-Characteristics-Quality-Hospitals-Health-Systems.pdf
    December 01, 2014 - b These columns include all hospitals in the HCUP SID that can be merged with AHA files. … HCUP Cost-to-Charge Ratio (CCR) Files. Healthcare Cost and Utilization Project (HCUP). 2001–2012.
  17. hcup-us.ahrq.gov/team/NationwideDUA.pdf
    May 31, 2025 - If a journal or publication requests access to data or analytic files, I will cite restrictions on data
  18. hcup-us.ahrq.gov/team/StateDUA.pdf
    May 31, 2025 - If a journal or publication requests access to data or analytic files, I will cite restrictions on data
  19. hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/hi27.pdf
    December 04, 2011 - eHHIC: Linking Lab Data to Inpatient Discharge Data Hawaii Health Information Corporation Enhancing Hawaii Hospital Information Content (eHHIC) Deliverable 4 Linking Lab Data to Inpatient Discharge Data 2 | P a g e TABLE OF CONTENTS I. OBJECTIVE……………………………….……………
  20. hcup-us.ahrq.gov/reports/methods/2004_6_appendix_E.pdf
    January 01, 2004 - HCUP_methods_series_cover.ai HCUP Methods Series kbr33831 Contact Information: Healthcare Cost and Utilization Project (HCUP) Agency for Healthcare Research and Quality 540 Gaither Road Rockville, MD 20850 http://www.hcup-us.ahrq.gov For Technical Assistance with HCUP Products: Email: hcu…

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