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  1. Procedure Classes 2015

    hcup-us.ahrq.gov/toolssoftware/procedure/procedure.jsp
    July 01, 2025 - New codes are added, existing codes are deleted, and definitions of current codes are changed.

  2. Trends in Hospitalizations With a Red Blood Cell Transfusion, 2000-2013 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb215-Red-Blood-Cell-Transfusions-Trends.pdf
    October 01, 2016 - Definitions Diagnoses, procedures, ICD-9-CM, Procedure Classes, and Clinical Classifications Software … discharges supplied by the statewide data organizations that contribute to HCUP, rather than the definitions … necessitates recomputation of prior years' NIS data to enable analysis of trends that uses the same definitions … Introduction Definitions Types of hospitals included in the HCUP National (Nationwide) Inpatient Sample

  3. Delivery Hospitalizations Involving Preeclampsia and Eclampsia, 2005-2014 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb222-Preeclampsia-Eclampsia-Delivery-Trends.pdf
    December 01, 2016 - Definitions Diagnoses, procedures, ICD-9-CM, Clinical Classifications Software (CCS), and diagnosis-related … Maternal outcomes are generally consistent with the definitions used by a prior study on severe obstetric … discharges supplied by the statewide data organizations that contribute to HCUP, rather than the definitions … necessitates recomputation of prior years' NIS data to enable analyses of trends that use the same definitions … Introduction Definitions Types of hospitals included in the HCUP National (Nationwide) Inpatient Sample

  4. HCUP Cost-to-Charge Ratio Methodologies (pdf file)

    hcup-us.ahrq.gov/reports/methods/MS2021-05-CCR-Methodologies.pdf
    December 17, 2021 - HCUP Cost-to-Charge Ratio Methodologies HCUP Methods Series HCUP Cost-to-Charge Ratio Methodologies Report #2021-05 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:…

  5. Hospitalizations Involving Mental and Substance Use Disorders Among Adults, 2012 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb191-Hospitalization-Mental-Substance-Use-Disorders-2012.pdf
    January 01, 2012 - Definitions Diagnoses, ICD-9-CM, Clinical Classifications Software (CCS) The first-listed diagnosis … discharges supplied by the statewide data organizations that contribute to HCUP, rather than the definitions … necessitates recomputation of prior years' NIS data to enable analysis of trends that uses the same definitions

  6. Utilization of Intensive Care Services, 2011 #185

    hcup-us.ahrq.gov/reports/statbriefs/sb185-Hospital-Intensive-Care-Units-2011.jsp
    December 01, 2014 - Definitions Medicare Severity-Diagnosis Related Groups (MS-DRGs) MS-DRGs constitute a patient … More precise definitions of these categories, and the complex definitions of micropolitan and rural areas

  7. Trends and Projections in U.S. Hospital Costs by Patient Age, 2003-2013 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb176-Hospital-Cost-Projections-by-Age-2013.pdf
    January 01, 2013 - Definitions Case definition Coding criteria for the five hospital service lines are provided in … codes, Clinical Classifications Software (CCS) categories, and diagnosis-related groups (DRGs) (see definitions … for Healthcare Research and Quality 540 Gaither Road Rockville, MD 20850 mailto:hcup@ahrq.gov Definitions

  8. Calculating Community-Level Statistics for HCUPnet: Methods (pdf file)

    hcup-us.ahrq.gov/tech_assist/data_query/Methods_Community_Statistics20230207.pdf
    December 01, 2022 - Definitions of sub-State regions were provided by some HCUP Partner organizations. … Mental Health Services Administration. 2010-2012 National Survey on Drug Use and Health Substate Region Definitions … The software specifying the PQI/PDI definitions has changed several times since 2011.

  9. Trends in Hospital Inpatient Stays in the United States, 2005-2014 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb225-Inpatient-US-Stays-Trends.pdf
    December 01, 2016 - HCUP databases, derived from information available from the Bureau of the Census4 and Claritas.5 Definitions … discharges supplied by the statewide data organizations that contribute to HCUP, rather than the definitions … necessitates recomputation of prior years' NIS data to enable analyses of trends that use the same definitions … Introduction Definitions Types of hospitals included in the HCUP National (Nationwide) Inpatient Sample

  10. An All-Payer View of Hospital Discharge to Postacute Care, 2013 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb205-Hospital-Discharge-Postacute-Care.pdf
    November 01, 2015 - Definitions Diagnosis-related groups (DRGs) DRGs comprise a patient classification system that … Types of discharge destinations The definitions of discharges to PAC and routine discharges are: … discharges supplied by the statewide data organizations that contribute to HCUP, rather than the definitions … necessitates recomputation of prior years' NIS data to enable analysis of trends that uses the same definitions

  11. Overview of Hospital Stays for Children in the United States, 2012 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb187-Hospital-Stays-Children-2012.pdf
    January 01, 2012 - Definitions Diagnoses, procedures, ICD-9-CM, Clinical Classifications Software (CCS), diagnosis-related … discharges supplied by the statewide data organizations that contribute to HCUP, rather than the definitions … necessitates recomputation of prior years' NIS data to enable analysis of trends that uses the same definitions … www.hcup-us.ahrq.gov/reports/statbriefs/sb187-Hospital-Stays-Children-2012.pdf mailto:hcup@ahrq.gov Definitions

  12. Analysis of Emergency Department Visits During the October 2017 Wildfires in Northern California (pdf file)

    hcup-us.ahrq.gov/reports/ataglance/HCUPanalysisCA2017Wildfires.pdf
    August 19, 2019 - Clinical Coding Definitions ......................................................................... … The ICD-10-CM coding definitions for each condition are available in Appendix B. … CLINICAL CODING DEFINITIONS Condition groups were defined using all-listed International Classification … Clinical Coding Definitions Smoke Inhalation Initial Encounter for Exposure or Toxic Effect of Fire

  13. Statistical Brief #33: Reasons for Being Admitted to the Hospital through the Emergency Department for Children and Adolescents, 2004 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb33.pdf
    June 01, 2007 - Definitions Types of hospitals included in HCUP HCUP is based on data from community hospitals, defined … Pediatric, neonatal, and maternal cases Definitions of pediatric, birth, and maternal cases are as follows

  14. HCUP Statistical Brief #19: Common Injuries That Result in Hospitalization, 2004 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb19.pdf
    November 01, 2006 - Definitions Types of hospitals included in HCUP HCUP is based on data from community hospitals, defined … Although not used in this brief, there are other common definitions of injury developed by various sources

  15. Statistical Brief #32

    hcup-us.ahrq.gov/reports/statbriefs/sb32.jsp
    June 01, 2007 - Definitions Types of hospitals included in HCUP HCUP is based on data from community hospitals, … Pediatric, neonatal, and maternal cases Definitions of pediatric, birth, and maternal cases are as

  16. Coronary Artery Disease, Acute Myocardial Infarction, and Ischemic Stroke Rates Among Inpatient Stays, 2001-2014 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb241-Coronary-Artery-AMI-Stroke-Hospital-Stays-2001-2014.pdf
    January 01, 2014 - Census Bureau.7 Definitions Diagnoses, procedures, and Clinical Classifications Software (CCS … Introduction Definitions Unit of analysis About HCUP Suggested Citation

  17. Maskedstats Nrd 2017 Hospital (pdf file)

    hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2017_Hospital.PDF
    January 01, 2017 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NRD 2017 Hospital File 18:56 Friday, November 22, 2019 1 Means of Continuous Data Elements please refer to the section on Description of Data Elements. For more i…

  18. Maskedstats Nrd 2015 Hospital (pdf file)

    hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2015_Hospital.PDF
    January 01, 2015 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NRD 2015 Hospital File 07:12 Tuesday, October 31, 2017 1 Means of Continuous Data Elements please refer to the section on Description of Data Elements. For more i…

  19. Facts and Figures Exhibit 5.12

    hcup-us.ahrq.gov/reports/factsandfigures/2008/exhibit5_12.jsp
    January 01, 2008 - MHSA SOURCES/METHODS DEFINITIONS FOR MORE INFO ACKNOWLEDGMENTS CITATION FACTS & FIGURES 2008

  20. Poaaddonfile042208Ahrqmod (pdf file)

    hcup-us.ahrq.gov/datainnovations/clinicaldata/POAAddonfile042208AHRQMod.pdf
    September 23, 2010 - for "Adding Clinical Data to Administrative Data" project CMS POA Indicator Reporting Options and Definitions
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