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  1. Checklist for Working with the NIS

    hcup-us.ahrq.gov/db/nation/nis/nischecklist.jsp
    September 01, 2025 - Checklist for Working with the NIS An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email Update…

  2. Most Frequent Principal Diagnoses for Inpatient Stays in U.S. Hospitals, 2018 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb277-Top-Reasons-Hospital-Stays-2018.pdf
    January 01, 2018 - Most Frequent Principal Diagnoses for Inpatient Stays in U.S. Hospitals, 2018 1 Most Frequent Principal Diagnoses for Inpatient Stays in U.S. Hospitals, 2018 STATISTICAL BRIEF #277 July 2021 Kimberly W. McDermott, Ph.D., and Marc Roemer, M.S. Introduction Identifying the most freque…

  3. Statistical Brief #152

    hcup-us.ahrq.gov/reports/statbriefs/sb152.jsp
    March 01, 2013 - Statistical Brief #152 An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email Updates …

  4. Statistical Brief #152: Characteristics of Homeless and Non-Homeless Individuals Using Inpatient and Emergency Department Services, 2008 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb152.pdf
    March 08, 2013 - Statistical Brief #152: Characteristics of Homeless and Non-Homeless Individuals Using Inpatient and Emergency Department Services, 2008 1 March 2013 Characteristics of Homeless and Non- Homeless Individuals Using Inpatient and Emergency Department Services, 2008 Zeynal Karaca, Ph.D., Herbert…

  5. Elixhauser Comorbidity Software, Version 3.7

    hcup-us.ahrq.gov/toolssoftware/comorbidity/comorbidity.jsp
    June 01, 2017 - Elixhauser Comorbidity Software, Version 3.7 An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Em…

  6. Conditions With the Largest Number of Adult Hospital Readmissions by Payer, 2011 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb172-Conditions-Readmissions-Payer.pdf
    November 01, 2013 - Conditions With the Largest Number of Adult Hospital Readmissions by Payer, 2011 1 April 2014 Conditions With the Largest Number of Adult Hospital Readmissions by Payer, 2011 Anika L. Hines, Ph.D., M.P.H., Marguerite L. Barrett, M.S., H. Joanna Jiang, Ph.D., and Claudia A. Steiner, M.D., M.P…

  7. HCUP QUALITY CONTROL PROCEDURES (pdf file)

    hcup-us.ahrq.gov/db/quality.pdf
    January 31, 2025 - HCUP QUALITY CONTROL PROCEDURES HCUP (2/20/2025) i Quality Control Procedures Document HCUP QUALITY CONTROL PROCEDURES TABLE OF CONTENTS INTRODUCTION .........................................................................................................…

  8. Hospital Differences in Adult Inpatient Stays with Healthcare-Associated Infections, 2019 and 2021 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs//sb314-hospital-differences-HAIs-2019-2021.pdf
    January 01, 2021 - Hospital Differences in Adult Inpatient Stays with Healthcare-Associated Infections, 2019 and 2021 1 Does Responded to UCD team Hospital Differences in Adult Inpatient Stays with Healthcare-Associated Infections, 2019 and 2021 Statistical Brief #314 | October 2024 Melissa A. Miller, M.D., M.S., Leyi…

  9. Hospital Differences in Adult Inpatient Stays with Healthcare-Associated Infections, 2019 and 2021 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb314-hospital-differences-HAIs-2019-2021.pdf
    January 01, 2021 - Hospital Differences in Adult Inpatient Stays with Healthcare-Associated Infections, 2019 and 2021 1 Does Responded to UCD team Hospital Differences in Adult Inpatient Stays with Healthcare-Associated Infections, 2019 and 2021 Statistical Brief #314 | October 2024 Melissa A. Miller, M.D., M.S., Leyi…

  10. 2018-02 (pdf file)

    hcup-us.ahrq.gov/reports/methods/2018-02.pdf
    January 01, 2018 - HCUP Methods Series kbr33831 Contact Information: Healthcare Cost and Utilization Project (HCUP) Agency for Healthcare Research and Quality 5600 Fishers Lane Room 07W17B Mail Stop 7W25B Rockville, MD 20857 http://www.hcup-us.ahrq.gov For Technical Assistance with HCUP Products: Email: hcup@ahr…

  11. Linking Clinical Data to Administrative Data - AHRQ Contract with MHA

    hcup-us.ahrq.gov/datainnovations/clinicaldata/RealTimeLOINCTranslationPoster.jsp
    July 01, 2016 - Linking Clinical Data to Administrative Data - AHRQ Contract with MHA An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us E…

  12. Conditions With the Largest Number of Adult Hospital Readmissions by Payer, 2011 - Statistical Brief #172

    hcup-us.ahrq.gov/reports/statbriefs/sb172-Conditions-Readmissions-Payer.jsp
    April 01, 2014 - Conditions With the Largest Number of Adult Hospital Readmissions by Payer, 2011 - Statistical Brief #172 An official website of the Department of Health & Human Services Search All AHRQ Websites …

  13. Description of Data Elements (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2001_HOSPITAL.pdf
    January 01, 2001 - Description of Data Elements Description of Data Elements Nationwide Inpatient Sample (NIS) Hospital Weights File This document contains cumulative descriptions of data elements across all states and years of HCUP data from 1988 to the current data year. Please refer to the Overview of the Nationwi…

  14. Characteristics and Costs of Potentially Preventable Inpatient Stays, 2017 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb259-Potentially-Preventable-Hospitalizations-2017.pdf
    January 01, 2017 - Characteristics and Costs of Potentially Preventable Inpatient Stays, 2017 1 June 2020 Characteristics and Costs of Potentially Preventable Inpatient Stays, 2017 Kimberly W. McDermott, Ph.D., and H. Joanna Jiang, Ph.D. Introduction Hospital care represents the largest component of U.S. he…

  15. C:\unzipped\Methods Series Reports to Convert\Comparison_Report_NIS4 1995.wpd (pdf file)

    hcup-us.ahrq.gov/reports/methods/Comparison_Report_NIS41995Final.pdf
    December 21, 1998 - C:\unzipped\Methods Series Reports to Convert\Comparison_Report_NIS4 1995.wpd 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 Technica…

  16. 2004 HCUP Nationwide Inpatient Sample (NIS) Comparison Report

    hcup-us.ahrq.gov/db/nation/nis/reports/2004niscomparisonrpt.jsp
    May 01, 2016 - These outcomes were similar to the 2001-2003 analyses and represented improvements over the 2000 assessments

  17. HCUPAnalysisCA2018Wildfires (pdf file)

    hcup-us.ahrq.gov/reports/ataglance/HCUPAnalysisCA2018Wildfires.pdf
    November 07, 2019 - HCUPAnalysisCA2018Wildfires Wildfires in California: Emergency Department Visits Around November 2018 We wish to acknowledge the HCUP Partner organization from the California Office of Statewide Health Planning and Development (OSHPD) that contributed to the HCUP State Databases used in this…

  18. Comorbidity Software (pdf file)

    hcup-us.ahrq.gov/reports/methods/ComorbiditySoftwareDocumentationFinal.pdf
    September 30, 2004 - Comorbidity Software HCUP Methods Series 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: hcup@ahrq.gov or Pho…

  19. PRCCSR ChangeLog v20221 v20231 (xls file)

    hcup-us.ahrq.gov/toolssoftware/ccsr/PRCCSR-ChangeLog-v20231-v20241.xlsx
    December 01, 2023 - PRCCSR ChangeLog v20221 v20231 Table_of_Contents This Excel file enumerates the changes between the following releases of the Clinical Classifications Software Refined (CCSR) for ICD-10-PCS procedures Compared versions: v2024.1 (released December 2023) to v2023.1 (released October 2022) Table of Contents Changes t…

  20. Geographic Variation in Potentially Preventable Inpatient Stays for Chronic Health Conditions, 2016 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb264-Chronic-Condition-Preventable-Hospitalizations-2016.pdf
    January 01, 2016 - Geographic Variation in Potentially Preventable Inpatient Stays for Chronic Health Conditions, 2016 1 STATISTICAL BRIEF #264 September 2020 Audrey J. Weiss, Ph.D., and H. Joanna Jiang, Ph.D. Introduction Potentially preventable hospitalizations—those inpatient stays that could possibl…
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