-
hcup-us.ahrq.gov/db/state/siddist/SID_Introduction.jsp
June 01, 2022 - The SID are calendar year files for all data years except 2015. … This occurs when a hospital was closed in a previous year or when the hospital does not report to the … The number of CD-ROMs depends on the State and year of data. … of hospitals and types of records included in each SID (e.g., number of discharges and hospitals by year … Data Elements
Availability of States Across All Years
Availability of Data Elements by Year
-
hcup-us.ahrq.gov/db/nation/nass/2019_NASS_Introduction.pdf
January 01, 2019 - • The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year, encounter-
level database constructed … Number of States, Hospital-Owned Facilities, and Encounters in the NASS
by Year
Data
Year States … • Procedures considered in scope for the NASS sample can change from year to
year (see Appendix … YEAR Encounter year
Hospital
characteristics
HOSP_BEDSIZE_CAT Hospital bed size category: (1) 00 … YEAR Encounter year
Identifiers, synthetic HOSP_NASS Unique HCUP NASS hospital number, links to other
-
hcup-us.ahrq.gov/HCUP_Overview/HCUP_Overview/index508.jsp
October 01, 2022 - Price:
Beginning 2017: $750 per data-year
2016: $625 per data-year
2014-2015: $500 per data-year … 2007-2013: $350 per data-year
2000-2006: $200 per data-year
1993-1999: $160 per data-year
1988 … per data-year
2013-2015: $100 per data-year
2007-2012: $50 per data-year.
1988-2006: $20 per data-year … year
Student Price:
Beginning 2016: $100 per data-year
2009-2012: $50 per data-year
1997 … Criteria to determine the relationship between multiple hospital admissions for an individual patient in a calendar
-
hcup-us.ahrq.gov/db/state/siddist/Introduction_to_SID.pdf
September 01, 2025 - The SID are calendar year files for all data years except 2015. … This occurs when a hospital was closed in a
previous year or when the hospital does not report to the … The number of DVD-ROMs depends on the State and year
of data. … hospitals and types of records
included in each SID (e.g., number of
discharges and hospitals by year … Elements
• Availability of States Across All Years
• Availability of Data Elements and
Descriptions by Year
-
hcup-us.ahrq.gov/db/nation/nass/2018_NASS_Introduction.pdf
January 01, 2018 - • The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year, encounter-
level database constructed … Number of States, Hospital-Owned Facilities, and Encounters in the NASS
by Year
Data
Year States … The procedures considered in scope for the NASS sample can change from year to year (see
Appendix B) … YEAR Encounter year
Hospital
characteristics
HOSP_BEDSIZE_CAT Hospital bed size category: (1) 00 … YEAR Encounter year
Identifiers, synthetic HOSP_NASS Unique HCUP NASS hospital number, links to other
-
hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2018.jsp
January 01, 2018 - The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year, encounter-level database constructed … Number of States, Hospital-Owned Facilities, and Encounters in the NASS by Year
Data Year … The procedures considered in scope for the NASS sample can change from year to year (see Appendix B … YEAR
Encounter year
Hospital characteristics
HOSP_BEDSIZE_CAT
Hospital bed size category … YEAR
Encounter year
Identifiers, synthetic
HOSP_NASS
Unique HCUP NASS hospital number,
-
hcup-us.ahrq.gov/reports/statbriefs/sb196-Readmissions-Trends-High-Volume-Conditions.jsp
November 01, 2015 - The aggregate cost of readmissions for these four conditions over the 5-year time period also decreased … within 30 days, divided by the total number of admissions from January through November of the same year … About the NRD
The HCUP Nationwide Readmissions Database (NRD) is a calendar-year, discharge-level … The database includes discharges for patients with and without repeat hospital visits in a year and those … to year.
-
hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2019.jsp
January 01, 2019 - AMBULATORY SURGERY SAMPLE (NASS)
The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year … Number of States, Hospital-Owned Facilities, and Encounters in the NASS by Year
Data Year
States … Procedures considered in scope for the NASS sample can change from year to year (see Appendix B ). … YEAR
Encounter year
Hospital characteristics
HOSP_BEDSIZE_CAT
Hospital bed size category … YEAR
Encounter year
Identifiers, synthetic
HOSP_NASS
Unique HCUP NASS hospital number,
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2013_MaskedStats_Core.PDF
January 01, 2013 - 1.57
TOTCHG_ED : Total charge for ED services 24,928,537 4,653,181 100.00 878634.00 2742.27 4175.39
YEAR … : Calendar year 29,581,718 0 2013.00 2013.00 2013.00 0.00
ZIPINC_QRTL : Median household income national … YEAR Frequency Percent
2013 29,581,718 100.00
please refer to the section on Description of Data … for PAY2
Table PAY2
Table 1
Frequency for TOTCHG_ED
Table TOTCHG_ED
Table 1
Frequency for YEAR … Table YEAR
Table 1
Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
The Univariate Procedure
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2012_MaskedStats_Core.PDF
January 01, 2012 - 1.57
TOTCHG_ED : Total charge for ED services 26,405,309 4,685,711 100.00 863787.00 2484.00 3771.04
YEAR … : Calendar year 31,091,020 0 2012.00 2012.00 2012.00 0.00
ZIPINC_QRTL : Median household income national … Statistics Report: NEDS 2012 - Core File
02:12 Tuesday, November 18, 2014 54
Frequency Distribution for YEAR … YEAR Frequency Percent
2012 31,091,020 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
The Univariate Procedure
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2010_MaskedStats_Core_Weighted.PDF
January 01, 2010 - 1 6 2.83 0.03
TOTCHG_ED Total charge for ED services 24,367,320 4,216,981 100 74970 2060.51 41.81
YEAR … Calendar year 28,584,301 0 2010 2010 2010.00 0.00
ZIPINC_QRTL Median household income national quartile … Report: NEDS 2010 - Core File
12:45 Monday, October 29, 2012 56
Weighted Frequency Distribution for YEAR … YEAR Frequency Percent
2010 128,970,364 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Weighted Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2012_MaskedStats_Core_Weighted.PDF
January 01, 2012 - Total charge for ED services 26405309 4685711 100 863,787 2430.425804 54.523862 2323.39188 2537.45973
YEAR … Calendar year 31091020 0 2,012 2,012 2012.000000 1.868046E-10 2012.00000 2012.00000
ZIPINC_QRTL Median … Report: NEDS 2012 - Core File
02:12 Tuesday, November 18, 2014 55
Weighted Frequency Distribution for YEAR … YEAR Frequency Percent
2012 134,399,179 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Weighted Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2011_MaskedStats_Core_Weighted.PDF
January 01, 2011 - 6 2.78 0.03
TOTCHG_ED Total charge for ED services 24,909,625 4,511,786 100 948428 2400.79 66.75
YEAR … Calendar year 29,421,411 0 2011 2011 2011.00 0.00
ZIPINC_QRTL Median household income national quartile … Report: NEDS 2011 - Core File
12:14 Thursday, December 5, 2013 55
Weighted Frequency Distribution for YEAR … YEAR Frequency Percent
2011 131,048,605 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Weighted Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2013_MaskedStats_Core_Weighted.PDF
January 01, 2013 - Total charge for ED services 24928537 4653181 100 878,634 2677.610542 58.861940 2562.05851 2793.16258
YEAR … Calendar year 29581718 0 2,013 2,013 2013.000000 1.536847E-10 2013.00000 2013.00000
ZIPINC_QRTL Median … YEAR Frequency Percent
2013 134,869,015 100.00
please refer to the section on Description of Data … PAY2
Table 1
Weighted Frequency for TOTCHG_ED
Table TOTCHG_ED
Table 1
Weighted Frequency for YEAR … Table YEAR
Table 1
Weighted Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2011v2_MaskedStats_Core_Weighted.PDF
November 03, 2014 - charge for ED services 24277865 111,471,963 100 936,811 2205.865370 47.424284 2112.76857 2298.96217
YEAR … Calendar year 28788399 131,048,605 2,011 2,011 2011.000000 1.038443E-10 2011.00000 2011.00000
ZIPINC_QRTL … Report: NEDS 2011 - Core File
14:38 Monday, November 3, 2014 56
Weighted Frequency Distribution for YEAR … YEAR Frequency Percent
2011 131,048,605 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Weighted Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2009_MaskedStats_Core_Weighted.PDF
January 01, 2009 - 1 6 2.82 0.03
TOTCHG_ED Total charge for ED services 24,062,373 4,798,674 100 74954 1850.58 33.06
YEAR … Calendar year 28,861,047 0 2009 2009 2009.00 0.00
ZIPINC_QRTL Median household income national
quartile … : NEDS 2009 - Core File
23:07 Saturday, September 10, 2011 55
Weighted Frequency Distribution for YEAR … YEAR Frequency Percent
2009 128,885,040 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Weighted Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2014_MaskedStats_Core_Weighted.PDF
January 01, 2014 - Total charge for ED services 25777150 5249267 100 876,633 2985.294419 68.013397 2851.77713 3118.81170
YEAR … Calendar year 31026417 0 2,014 2,014 2014.000000 5.794749E-10 2014.00000 2014.00000
ZIPINC_QRTL Median … YEAR Frequency Percent
2014 137,807,901 100.00
please refer to the section on Description of Data … PAY2
Table 1
Weighted Frequency for TOTCHG_ED
Table TOTCHG_ED
Table 1
Weighted Frequency for YEAR … Table YEAR
Table 1
Weighted Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
-
hcup-us.ahrq.gov/db/nation/neds/NEDS2014Introduction.pdf
December 12, 2016 - Number of States, Hospital-Owned Emergency Departments, and Records in the
NEDS by Year
Data
Year … and the current data year decreased
by more than 20%. … The load programs are specific to the
data year and data-related file. … Discharge
timing
DQTR Coded: (1) Jan - Mar, (2) Apr - Jun, (3) Jul - Sep, (4)
Oct – Dec
YEAR Calendar … Discharge Year YEAR Discharge year
Hospital counts N_HOSP_U Number of AHA universe hospital-owned EDs
-
hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2014.jsp
January 01, 2014 - and the current data year decreased by more than 20%. … About 45 OH hospitals a year were excluded from the sampling frame in 2010-2012. … The load programs are specific to the data year and data-related file . … Calendar year of ED visits
Disposition of patient from the ED
DISP_ED
Disposition from ED … Discharge Year
YEAR
Discharge year
Hospital counts
N_HOSP_U
Number of AHA universe hospital-owned
-
hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2013.jsp
January 01, 2013 - and the current data year decreased by more than 20%. … About 45 OH hospitals a year were excluded from the sampling frame in 2010-2012. … They are specific to the data year. … Calendar year of ED visits
Disposition of patient from the ED
DISP_ED
Disposition from ED … Discharge Year
YEAR
Discharge year
Hospital counts
N_HOSP_U
Number of AHA universe hospital-based