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hcup-us.ahrq.gov/db/state/siddbdocumentation.jsp
September 01, 2025 - State Inpatient Databases (SID) Database
Documentation
The State Inpatient Databases (SID) are State-specific files
that contain all inpatient care records in participating states.
Together, the SID encompass more than 95 percent of all U.S.
hospital discharges. The uniform format of the SID …
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hcup-us.ahrq.gov/tech_assist/toolstutorial/index.html
March 06, 2024 - Tools Tutorial
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hcup-us.ahrq.gov/figures/nis_figure3_2021.jsp
January 01, 2021 - Figure 3: Number of Discharges (in Thousands) in 2019 NIS by Census Division and Census Region
Figure 3: Number of Discharges (in Thousands) in 2019 NIS by Census Division and Census Region
Census Division
Number of Discharges
New England
329,427
Middle Atlantic
952,052
East Nort…
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hcup-us.ahrq.gov/figures/nis_figure3_2020.jsp
January 01, 2020 - Figure 3: Number of Discharges (in Thousands) in 2020 NIS by Census Division and Census Region
Figure 3: Number of Discharges (in Thousands) in 2020 NIS by Census Division and Census Region
Census Division
Number of Discharges
New England
299,108
Middle Atlantic
858,938
East Nort…
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hcup-us.ahrq.gov/figures/kid_figure3_19.jsp
July 01, 2019 - Figure 3. Percentage of U.S. Population in 2019 KID States, by Region Calculated using the estimated U.S. population on July 1, 2019 13
Figure 3. Percentage of U.S. Population in 2019 KID States, by Region Calculated using the estimated U.S. population on July 1, 2019
Region
Population of 2019 K…
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hcup-us.ahrq.gov/figures/nis_figure1_2020.jsp
January 01, 2020 - Figure 1: Percentage of U.S. Population Covered in the 2020 NIS by Census Division and Region,
Calculated using the Estimated U.S. Population on July 1, 2020
Figure 1: Percentage of U.S. Population Covered in the 2020 NIS by Census Division and Region,
Calculated using the Estimated U.S. Popula…
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hcup-us.ahrq.gov/datainnovations/clinicaldata/Appendix15BDformatCopyofSummarySheet.pdf
January 01, 2021 - LOINC MAPPING SUMMARY
Clinical Data Elements ALL KIDS Memorial Healthcare Broward Health Miami Children's BayCare Health
Albumin X X X X X
Alkaline phosphatase X X X X X
Base Excess Has 3 (Arterial, Capillary, Venous) X X X does not report this
Bicarb Has 3 (Arterial, Capillary, Venous) X X X X
Blood urea nitroge…
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hcup-us.ahrq.gov/datainnovations/clinicaldata/MPinepresentation.pdf
September 22, 2010 - Monitoring Clinical Performance
Claims Data – from HCFA Mortality Reports and
HealthGrades.com to HCUP
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hcup-us.ahrq.gov/datainnovations/clinicaldata/AHRQHCUPfinalNov09BDiefenbach.pdf
November 01, 2009 - Agency for Health Care Administration
Florida Center for Health Information and Policy Analysis
HCUP
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hcup-us.ahrq.gov/datainnovations/clinicaldata/AHRQHCUP11182009CSullivanFinal.pdf
November 01, 2009 - Agency for Health Care Administration
Florida Center for Health Information and Policy Analysis
HCUP
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hcup-us.ahrq.gov/datainnovations/clinicaldata/3MSummaryResultsReportFinal.jsp
October 03, 2010 - Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP … Statistical Briefs
Summary Trend Tables
Findings-At-A-Glance
Publications
Information About Using HCUP … Healthcare Cost and Utilization Project (HCUP). October 2010. … Agency for Healthcare Research and Quality, Rockville, MD. hcup-us.ahrq.gov/datainnovations/clinicaldata … If you have comments, suggestions, and/or questions, please contact hcup@ahrq.gov .
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hcup-us.ahrq.gov/datainnovations/clinicaldata/AHRQFINALREPORTVHI.jsp
July 01, 2016 - Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP … Statistical Briefs
Summary Trend Tables
Findings-At-A-Glance
Publications
Information About Using HCUP … Healthcare Cost and Utilization Project (HCUP). July 2016. … Agency for Healthcare Research and Quality, Rockville, MD. hcup-us.ahrq.gov/datainnovations/clinicaldata … If you have comments, suggestions, and/or questions, please contact hcup@ahrq.gov .
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hcup-us.ahrq.gov/figures/nis_figure1_2017.jsp
January 01, 2017 - Figure 1: Percentage of U.S. Population Covered in the 2015 NIS by Census Division and Region, Calculated using the Estimated U.S. Population on July 1, 2015
Figure 1: Percentage of U.S. Population Covered in the 2015 NIS by Census Division and Region, Calculated using the Estimated U.S. Population on July 1,…
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hcup-us.ahrq.gov/figures/nis_figure3_2017.jsp
January 01, 2017 - Figure 3: Number of Discharges (in Thousands) in 2015 NIS by Census Division and Census Region
Figure 3: Number of Discharges (in Thousands) in 2015 NIS by Census Division and Census Region
Census Division
Number of Discharges
New England
327,753
Middle Atlantic
993,019
East Nort…
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hcup-us.ahrq.gov/figures/nis_figure4_2013.jsp
January 01, 2013 - Figure 4: Number of Hospitals in the 2011 Universe, Frame, and Sample for Frame States
Figure 4: Number of Hospitals in the 2011 Universe, Frame, and Sample for Frame States
States
Number of Hospitals Sampled
Number of Hospitals in Frame (Percent)
Number of Hospitals in Universe
AK
2 (…
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hcup-us.ahrq.gov/figures/nis_figure3_2013.jsp
January 01, 2013 - Figure 3: NIS Hospital Sampling Frame, by Year
Figure 3: NIS Hospital Sampling Frame, by Year
Year
Number of Hospitals
1988
1,247
1989
1,658
1990
1,620
1991
1,604
1992
1,591
1993
2,168
1994
2,135
1995
2,284
1996
2,268
19…
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hcup-us.ahrq.gov/figures/nis_figure10_2011.jsp
January 01, 2011 - Figure 10: Number of Discharges in the 2009 NIS, by State
Figure 10: Number of Discharges in the 2009 NIS, by State
State
Number of Discharges
Arkansas
82,524
Arizona
140,894
California
901,279
Colorado
156,401
Connecticut
98,266
Florida
670,080
…
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hcup-us.ahrq.gov/figures/nis_figure8_2011.jsp
January 01, 2011 - Figure 8: Number of Hospitals in the 2009 Universe, Frame, Sample, Target, and Surplus, by Region
Figure 8: Number of Hospitals in the 2009 Universe, Frame, Sample, Target, and Surplus, by Region
Region
Hospitals in Universe
Hospitals in Frame
Hospitals in Sample
Hospitals in Target
Surplu…
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hcup-us.ahrq.gov/figures/nis_figure9_2011.jsp
January 01, 2011 - Figure 9: Percentage of U.S. Population in 2008 NIS States, by Region
Figure 9: Percentage of U.S. Population in 2009 NIS States, by Region
Region
Estimated U.S. Population
Population of NIS States
Northeast
55,242,435
55,242,435 (100.00%)
Midwest
66,770,813
66,124,910 (99.…
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hcup-us.ahrq.gov/figures/nis_figure4_2009.jsp
January 01, 2009 - Figure 4: Number of Hospitals in the 2007 Universe, Frame, and Sample for Frame States
Figure 4: Number of Hospitals in the 2007 Universe, Frame, and Sample for Frame States
States
Number of Hospitals Sampled
Number of Hospitals in Frame (Percent)
Number of Hospitals in Universe
Arkansas…