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  1. hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2009_MaskedStats_Hospital.PDF
    January 01, 2009 - Selected Continuous Data Elements Variable: DISCWT (Weight to discharges in AHA universe) Quantiles (Definition … Selected Continuous Data Elements Variable: HOSPWT (Weight to hospitals in AHA universe) Quantiles (Definition … Data Elements Variable: N_DISC_U (Number of AHA universe discharges in NIS_STRATUM) Quantiles (Definition … Continuous Data Elements Variable: S_DISC_U (Number of sample discharges in NIS_STRATUM) Quantiles (Definition … Continuous Data Elements Variable: S_HOSP_U (Number of sample hospitals in NIS_STRATUM) Quantiles (Definition
  2. hcup-us.ahrq.gov/toolssoftware/hms/HMSUserGuide1997.pdf
    January 10, 2007 - Hospital Market Structure Measures by Market Definitions For each market definition, the HCUP Hospital … Fixed Radius Under the fixed radius market definition, every hospital is assigned a unique market … Variable Radius The variable radius market definition allows the radius to vary for each hospital … so that it captures 75% of the hospital’s discharges (or 90%, depending on the market definition used … Under each market definition, the number of hospitals and the HHI are reported. D.
  3. hcup-us.ahrq.gov/toolssoftware/hms/HMSUserGuide2000.pdf
    January 10, 2007 - Hospital Market Structure Measures by Market Definitions For each market definition, the HCUP Hospital … Fixed Radius Under the fixed radius market definition, every hospital is assigned a unique market … Variable Radius The variable radius market definition allows the radius to vary for each hospital … so that it captures 75% of the hospital’s discharges (or 90%, depending on the market definition used … Under each market definition, the number of hospitals and the HHI are reported. D.
  4. 1/31/2002 (pdf file)

    hcup-us.ahrq.gov/toolssoftware/hms/HMSUserGuide2006.pdf
    June 30, 2012 - Market Definitions for HMS Measures For each market definition, the HCUP Hospital Market Structure … Fixed Radius Under the fixed radius market definition, every hospital is assigned a unique market … Variable Radius The variable radius market definition allows the radius to vary for each hospital … so that it captures 75% of the hospital’s discharges (or 90%, depending on the market definition used … Under each market definition, the number of hospitals and the HHI are reported. D.
  5. 1/31/2002 (pdf file)

    hcup-us.ahrq.gov/toolssoftware/hms/HMSUserGuide2009.pdf
    June 30, 2012 - Market Definitions for HMS Measures For each market definition, the HCUP Hospital Market Structure … Fixed Radius Under the fixed radius market definition, every hospital is assigned a unique market … Variable Radius The variable radius market definition allows the radius to vary for each hospital … so that it captures 75% of the hospital’s discharges (or 90%, depending on the market definition used … Under each market definition, the number of hospitals and the HHI are reported. D.
  6. 2012 04 (pdf file)

    hcup-us.ahrq.gov/reports/methods/2012_04.pdf
    January 01, 2012 - JS=Y Definition of Index Admission (Denominator for Rate) Qualifying Event Discharged alive with … CMS Readmissions Following Elective Total Hip and/or Knee Arthoplasty (THA and/or TKA) DefinitionDefinition of Readmission (Numerator for Rate) Qualifying Event A subsequent hospital inpatient … Other Considerations None Definition of Readmission (Numerator for Rate) Qualifying Event At … Definition of Index Admission (Denominator for Rate) Qualifying Event Admissions for any cause for
  7. hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2019_Hospital_V2.PDF
    January 01, 2019 - Continuous Data Elements Variable: N_DISC_U (Number of universe discharges in NRD_STRATUM) Quantiles (Definition … Continuous Data Elements Variable: N_HOSP_U (Number of universe hospitals in NRD_STRATUM) Quantiles (Definition … Continuous Data Elements Variable: S_DISC_U (Number of sample discharges in NRD_STRATUM) Quantiles (Definition … Continuous Data Elements Variable: S_HOSP_U (Number of sample hospitals in NRD_STRATUM) Quantiles (Definition
  8. hcup-us.ahrq.gov/reports/methods/2006_05_NISTrendsReport_1988-2004A.pdf
    January 01, 2006 - Bed Size Distribution of 1997 NIS Hospitals 1997 Definition Versus 1998 Definition ..32 Table 9. … NIS Trends in Total Discharges, by Universe Definition ............................................25 … NIS Trend in Mortality Rate, by Universe Definition ................................................. … as compared with 20.1 percent under the 1998 definition. … Bed Size Distribution of 1997 NIS Hospitals 1997 Definition Versus 1998 Definition 1997 Definition
  9. hcup-us.ahrq.gov/toolssoftware/procedureicd10/PClassR-User-Guide-v2025-1.pdf
    November 01, 2024 - • Aligned the identification of major procedures with the definition of operating room procedures in … In addition, there was interest in aligning the identification of major procedures with the definition … o Aligned the identification of major procedures with the definition of operating room procedures in … o Aligned the identification of major procedures with the definition of operating room procedures in … o Aligned the identification of major procedures with the definition of operating room procedures in
  10. hcup-us.ahrq.gov/db/vars/pclassn/nisnote.jsp
    September 01, 2008 - Beginning with the Procedure Classes Refined for ICD-10-PCS version 2021.1, the Procedure Classes definition … of major surgeries is aligned with the definition of an operating room procedure used by the AHRQ Quality … Prior to version 2021.1, the Procedure Classes definition of major surgeries was based on the list of
  11. hcup-us.ahrq.gov/db/vars/pclassn/nrdnote.jsp
    August 01, 2015 - Beginning with the Procedure Classes Refined for ICD-10-PCS version 2021.1, the Procedure Classes definition … of major surgeries is aligned with the definition of an operating room procedure used by the AHRQ Quality … Prior to version 2021.1, the Procedure Classes definition of major surgeries was based on the list of
  12. hcup-us.ahrq.gov/db/vars/pclassn/kidnote.jsp
    September 01, 2008 - Beginning with the Procedure Classes Refined for ICD-10-PCS version 2021.1, the Procedure Classes definition … of major surgeries is aligned with the definition of an operating room procedure used by the AHRQ Quality … Prior to version 2021.1, the Procedure Classes definition of major surgeries was based on the list of
  13. hcup-us.ahrq.gov/db/vars/pclassn/nedsnote.jsp
    May 01, 2015 - Beginning with the Procedure Classes Refined for ICD-10-PCS version 2021.1, the Procedure Classes definition … of major surgeries is aligned with the definition of an operating room procedure used by the AHRQ Quality … Prior to version 2021.1, the Procedure Classes definition of major surgeries was based on the list of
  14. hcup-us.ahrq.gov/toolssoftware/surgflags/surgeryflags.jsp
    October 01, 2017 - ICD-9-CM A procedure that is classified as a surgery based on a narrow, targeted, and restrictive definition … 81.54 - Total Knee Replacement A procedure that is classified as a surgery based on a broad definition … (surgery flag value = BROAD ) includes surgical procedures that may not fit the more strict definition … This definition includes diagnostic surgical procedures: An invasive therapeutic or diagnostic surgical … By definition, the BROAD flag includes all narrowly defined surgical procedures as well as a broader
  15. hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2012_Redesign_report.jsp
    January 01, 2012 - First, the definition of the universe will be revised. … First, the definition of the universe was revised. … or the new universe definition—because both samples are weighted to whichever universe definition is … the original universe definition shown in column 1. … Because the definition of year used for this report (fiscal year) did not match the definition used in
  16. hcup-us.ahrq.gov/db/state/sedddist/sedddist_filecompia.jsp
    June 01, 2007 - HOME Beginning in data year 2010, the Iowa Hospital Association added the following to the definition … Disorders Beginning October 2015, the Iowa Hospital Association added the following to the definition … HIV-2 Beginning in data year 2010, the Iowa Hospital Association added the following to the definition … infections Beginning October 2015, the Iowa Hospital Association added the following to the definition
  17. hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompco.jsp
    August 01, 2006 - In 2015, CHA's definition included CPT procedure codes under 69999. … This change in definition occurred because of hospitals only submitting CPT procedures in anticipation … Starting in data year 2017, the Partner selected records meeting their definition of outpatient surgery … Services - 075X In data year 2016, the Partner selected records based on CPT codes meeting their definition
  18. hcup-us.ahrq.gov/reports/methods/2007_02.pdf
    January 01, 2007 - .................................14 Figure 7: KID Trend in Mortality Rate, by Population Definition … It is important to recognize that the definition of pediatric discharges is different for 1997 than … The new definition still defined these same hospitals as teaching hospitals. … , as compared to 20.1 percent under the 2000 definition. … vs. 2000 Definition 2000 Definition 1997 Definition Small Medium Large Total Small 651 (26.3
  19. hcup-us.ahrq.gov/db/nation/nis/reports/NISRedesignFinalReport040914.pdf
    June 11, 2014 - First, the definition of the universe will be revised. … First, the definition of the universe was revised. … or the new universe definition— because both samples are weighted to whichever universe definition is … the original universe definition shown in column 1. … Because the definition of year used for this report (fiscal year) did not match the definition used
  20. 2014-04 (pdf file)

    hcup-us.ahrq.gov/reports/methods/2014-04.pdf
    January 01, 2014 - First, the definition of the universe will be revised. … First, the definition of the universe was revised. … or the new universe definition— because both samples are weighted to whichever universe definition is … the original universe definition shown in column 1. … Because the definition of year used for this report (fiscal year) did not match the definition used

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