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hcup-us.ahrq.gov/db/nation/nis/nisarchive.jsp
February 01, 2025 - Manual Version 27 (PDF file, 615 KB)
APS-DRGs Definition Manual Version 26 (PDF file, 586 KB) … APS-DRGs Definition Manual Version 25 (PDF file, 459 KB)
APS-DRGs Definition Manual Version 24 (PDF … file, 289 KB)
APS-DRGs Definition Manual Version 23 (PDF file, 476 KB)
APS-DRGs Definition Manual … Version 22 (PDF file, 239 KB)
APS-DRGs Definition Manual Version 21 (PDF file, 175 KB)
APS-DRGs … Definition Manual Version 20 (PDF file, 160 KB)
APS-DRGs Weights Manual Version 27 (PDF file, 285
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hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/hi7.jsp
July 01, 2016 - Date of Birth
Data Element: Date of Birth
HL7 Location: PID-7
Data Type: Date
Definition … Sex
Data Element: Sex
HL7 Location: PID-8
Data Type: Alpha
Definition: Sex of patient … Patient Class
Data Element: Patient Class
HL7 Location: PV1-2
Data Type: Alpha
Definition … Results Status
Data Element: Results Status
HL7 Location: OBR-25
Data Type: Alpha
Definition … Units
Data Element: Units
HL7 Location: OBX-6
Data Type: Alpha
Definition: Units of measure
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hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/hi7.pdf
August 04, 2011 - Number
Data Element: Account Number
HL7 Location: PID-18
Data Type: Alphanumeric
Definition … Data Element: Medical Record Number
HL7 Location: PID-3
Data Type: Alphanumeric
Definition … Date of Birth
Data Element: Date of Birth
HL7 Location: PID-7
Data Type: Date
Definition … Name
Data Element: Patient Last Name
HL7 Location: PID-5
Data Type: Alphanumeric
Definition … Patient Class
Data Element: Patient Class
HL7 Location: PV1-2
Data Type: Alpha
Definition
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2020_Hospital_MaskedStats.PDF
January 01, 2020 - Selected Continuous Data Elements
Variable: DISCWT (Weight to ED Visits 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 ED visits in NEDS_STRATUM)
Quantiles (Definition … Data Elements
Variable: N_HOSP_U (Number of AHA universe hospitals in NEDS_STRATUM)
Quantiles (Definition … Variable: TOTAL_EDVisits (Total number of ED visits from this hospital in the NEDS)
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2022_MaskedStats_Hospital.PDF
January 01, 2022 - Pr > |t| <.0001
Sign M 1905.5 Pr >= |M| <.0001
Signed Rank S 3631883 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 1905.5 Pr >= |M| <.0001
Signed Rank S 3631883 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 1905.5 Pr >= |M| <.0001
Signed Rank S 3631883 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 1905.5 Pr >= |M| <.0001
Signed Rank S 3631883 Pr >= |S| <.0001
Quantiles (Definition … Continuous Data Elements
Variable: S_BRTH_U (Number of sample births in the stratum)
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2022_Hospital_MaskedStats.PDF
January 01, 2022 - Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition … Data Elements
Variable: N_DISC_U (Number of AHA universe ED visits in NEDS_STRATUM)
Quantiles (Definition … Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2021_Hospital_MaskedStats.PDF
January 01, 2021 - Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition … Data Elements
Variable: N_DISC_U (Number of AHA universe ED visits in NEDS_STRATUM)
Quantiles (Definition … Pr > |t| <.0001
Sign M 496.5 Pr >= |M| <.0001
Signed Rank S 246760.5 Pr >= |S| <.0001
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2019_Hospital_MaskedStats.PDF
January 01, 2019 - Pr > |t| <.0001
Sign M 494.5 Pr >= |M| <.0001
Signed Rank S 244777.5 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 494.5 Pr >= |M| <.0001
Signed Rank S 244777.5 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 494.5 Pr >= |M| <.0001
Signed Rank S 244777.5 Pr >= |S| <.0001
Quantiles (Definition … Data Elements
Variable: N_DISC_U (Number of AHA universe ED visits in NEDS_STRATUM)
Quantiles (Definition … Pr > |t| <.0001
Sign M 494.5 Pr >= |M| <.0001
Signed Rank S 244777.5 Pr >= |S| <.0001
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2018_Hospital_MaskedStats.PDF
January 01, 2018 - Selected Continuous Data Elements
Variable: DISCWT (Weight to ED Visits 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 ED visits in NEDS_STRATUM)
Quantiles (Definition … Data Elements
Variable: N_HOSP_U (Number of AHA universe hospitals in NEDS_STRATUM)
Quantiles (Definition … Variable: TOTAL_EDVisits (Total number of ED visits from this hospital in the NEDS)
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2019_MaskedStats_Hospital_V2.PDF
January 01, 2019 - Continuous Data Elements
Variable: N_BRTH_U (Number of universe births in the stratum)
Quantiles (Definition … Continuous Data Elements
Variable: S_BRTH_U (Number of sample births in the stratum)
Quantiles (Definition … Data Elements
Variable: S_CHLD_U (Number of sample pediatric non-births in the stratum)
Quantiles (Definition … Data Elements
Variable: S_DISC_U (Number of sample births and children in the stratum)
Quantiles (Definition … Continuous Data Elements
Variable: S_HOSP_U (Number of sample hospitals in the stratum)
Quantiles (Definition
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hcup-us.ahrq.gov/db/vars/h_loctch/nisnote.jsp
September 01, 2008 - NIS Description of Data Elements
H_LOCTCH - Location/teaching status of hospital (definition … teaching status changed names and definitions across data years:
HCUP Variable
Data Years
Definition … HOSP_LOCTEACH
Beginning in 1998
More stringent definition of teaching hospital
H_LOCTCH … 1993-1997
Less stringent definition of teaching hospital
LOCTEACH
1988-1992
Same as H_LOCTCH … Variable Description Value Value Description H_LOCTCH Location/teaching status of hospital (definition
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hcup-us.ahrq.gov/db/vars/h_loctch/kidnote.jsp
September 01, 2008 - KID Description of Data Elements
H_LOCTCH - Location/teaching status of hospital (definition … teaching status changed names and definitions across data years:
HCUP Variable
Data Years
Definition … HOSP_LOCTEACH
Beginning in 1998
More stringent definition of teaching hospital
H_LOCTCH … 1993-1997
Less stringent definition of teaching hospital
LOCTEACH
1988-1992
Same as H_LOCTCH … Variable Description Value Value Description H_LOCTCH Location/teaching status of hospital (definition
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hcup-us.ahrq.gov/datainnovations/clinicaldata/FL25LOINCMaintenance.pdf
September 22, 2010 - Instead, build a new test definition. … While this is more resource intensive, it
preserves discreteness and accuracy of historical test definition … .
2a Moving to a chartable definition means the assay results will now be captured in
outbound HL7 … Some sites will reuse a send out test
definition, which used to be a simple text blob, to a discrete … definition for an in
house test.
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hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2004_Hospital.pdf
January 01, 2004 - used prior to 1998) .................. 12
H_LOC - Location of hospital (definition used prior to 1998 … )......................................... 13
H_LOCTCH - Location/teaching status of hospital (definition … HOSP_LOCTEACH Beginning in
1998
More stringent definition of
teaching hospital
H_LOCTCH 1993 … Beginning with the 1998 NIS, the name HOSP_TEACH is used and the definition of
teaching hospitals was … The HCUP variable name and definition for the hospital's teaching status has changed
over time.
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hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2003_HOSPITAL.pdf
January 01, 2003 - used prior to 1998).............................7
H_CONTRL - Control/ownership of hospital (definition … used prior to 1998)..........9
H_LOC - Location of hospital (definition used prior to 1998) ....... … .......................11
H_LOCTCH - Location/teaching status of hospital (definition used prior to … used prior to 1998) ..................13
H_TCH - Hospital teaching status (definition used prior to … The HCUP variable name and definition for the hospital's teaching status has changed
over time.
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/MaskedStats_NIS_2022_Hospital.PDF
January 01, 2022 - Univariates of Selected Continuous Data Elements
Variable: DISCWT (NIS discharge weight)
Quantiles (Definition … 50.4715 Pr > |t| <.0001
Sign M 2272 Pr >= |M| <.0001
Signed Rank S 5163120 Pr >= |S| <.0001
Quantiles (Definition … Continuous Data Elements
Variable: N_HOSP_U (Number of universe hospitals in the stratum)
Quantiles (Definition … Continuous Data Elements
Variable: S_DISC_U (Number of sample discharges in the stratum)
Quantiles (Definition … Continuous Data Elements
Variable: S_HOSP_U (Number of sample hospitals in the stratum)
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/MaskedStats_NIS_2021_Hospital.PDF
January 01, 2021 - 1130431 Pr > |t| <.0001
Sign M 2279 Pr >= |M| <.0001
Signed Rank S 5194981 Pr >= |S| <.0001
Quantiles (Definition … Univariates of Selected Continuous Data Elements
Variable: DISCWT (NIS discharge weight)
Quantiles (Definition … Continuous Data Elements
Variable: N_HOSP_U (Number of universe hospitals in the stratum)
Quantiles (Definition … Continuous Data Elements
Variable: S_DISC_U (Number of sample discharges in the stratum)
Quantiles (Definition … Continuous Data Elements
Variable: S_HOSP_U (Number of sample hospitals in the stratum)
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/nass/stats/NASS_Summary_Stats_Hospital_2022.pdf
January 01, 2022 - Pr > |t| <.0001
Sign M 1399.5 Pr >= |M| <.0001
Signed Rank S 1959300 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 1399.5 Pr >= |M| <.0001
Signed Rank S 1959300 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 1399.5 Pr >= |M| <.0001
Signed Rank S 1959300 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 1399.5 Pr >= |M| <.0001
Signed Rank S 1959300 Pr >= |S| <.0001
Quantiles (Definition … Pr > |t| <.0001
Sign M 1399.5 Pr >= |M| <.0001
Signed Rank S 1959300 Pr >= |S| <.0001
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2016_MaskedStats_Hospital.PDF
January 01, 2016 - Continuous Data Elements
Variable: N_BRTH_U (Number of universe births in the stratum)
Quantiles (Definition … Continuous Data Elements
Variable: S_BRTH_U (Number of sample births in the stratum)
Quantiles (Definition … Data Elements
Variable: S_CHLD_U (Number of sample pediatric non-births in the stratum)
Quantiles (Definition … Data Elements
Variable: S_CMPB_U (Number of sample complicated births in the stratum)
Quantiles (Definition … Data Elements
Variable: S_DISC_U (Number of sample births and children in the stratum)
Quantiles (Definition
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hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2002_Hospital.pdf
January 01, 2002 - ................................................................. 6
H_BEDSZ - Bedsize of hospital (definition … HOSP_LOCTEACH Beginning in
1998
More stringent definition of
teaching hospital
H_LOCTCH 1993- … HOSP_LOCTEACH Beginning in
1998
More stringent definition
of teaching hospital
H_LOCTCH 1993- … The HCUP variable name and definition for the hospital's teaching status has changed
over time. … HOSP_LOCTEACH Beginning in
1998
More stringent definition of
teaching hospital
H_LOCTCH 1993-