-
hcup-us.ahrq.gov/db/state/siddist/Iowa2009_2010SID_CD.pdf
December 01, 2011 - The Iowa HCUP State Inpatient Databases (SID) for 2009 (dated June or August 2010)
and 2010 (dated September 2011) contain misleading discharge data from four hospitals
accounting for about 11 percent of the files. The affected discharge data include
incorrect reporting of the principal procedure and incorrect orde…
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hcup-us.ahrq.gov/db/nation/kid/DataElements_KID_Hospital_2000.pdf
January 01, 2000 - For detailed information about the KID sampling design, see the year-specific
report on the Design of … For detailed information about the KID sampling design, see the year-specific
report on the Design of … For detailed information about the KID sampling design, see the year-specific
report on the Design of … For detailed information about the KID sampling design, see the year-specific
report on the Design of … For detailed information about the KID sampling design, see the year-specific
report on the Design of
-
hcup-us.ahrq.gov/moa.pdf
March 28, 2022 - The National Healthcare Quality and Disparities Report (NHQDR): www.hcup-
us.ahrq.gov/partner/nhqr_nhdr.jsp … The HCUP Annual Activities Report:
www.hcup-us.ahrq.gov/partner/MOARef/annual_activities.pdf
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hcup-us.ahrq.gov/db/nation/neds/stats/FileSpecifications_NEDS_2017_Core.TXT
January 01, 2017 - Data Set Name: NEDS_2017_CORE
Number of Observations: 33506645
Total Number of Data Elements: 58
Columns Description
======== ===========
1 - 4 Database name
6 - 9 Discharge year of data
11 - 19 File name
21 - 23 Data element number
25 - 43 Data element name
45 …
-
hcup-us.ahrq.gov/db/tools/HCUP_Formats.TXT
December 28, 2023 - /* =============================================================================
Program : HCUP_Formats.txt …
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hcup-us.ahrq.gov/db/nation/nis/NIS96_Overview_122104.pdf
November 01, 2015 - Will acknowledge in reports that data from the "Healthcare Cost and Utilization Project
(HCUP)" … Publications
HCUP Research Notes report aggregate statistics and detailed analyses using HCUP data
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hcup-us.ahrq.gov/figures/nis_figure4_2008.jsp
January 01, 2008 - 89
88
26
Wisconsin
132
130
30
West Virginia
56
56
15
return to report
-
hcup-us.ahrq.gov/figures/4_01.jsp
64
18
98.5%
CA
380
375
94
98.7%
AZ
58
56
12
96.6%
return to report
-
hcup-us.ahrq.gov/figures/nis_figure2_2021.jsp
January 01, 2021 - return to report
-
hcup-us.ahrq.gov/toolssoftware/ccsr/prccsr.jsp
July 01, 2025 - For example, the seven ICD-10-PCS codes needed to report a Whipple procedure are included in six different
-
hcup-us.ahrq.gov/figures/4_02.jsp
31
8
88.6%
CO
66
65
20
98.5%
CA
379
374
97
98.7%
return to report
-
hcup-us.ahrq.gov/figures/nis_figure4_2009.jsp
January 01, 2009 - 30
99.2%
130
West Virginia
17
100%
55
Wyoming
6
88.5%
26
return to report
-
hcup-us.ahrq.gov/db/nation/nis/SC-Ecode-NIS2000-ErrataSheet.pdf
May 23, 2017 - Nationwide Inpatient Sample (NIS)
2000
Errata Sheet
In the 2000 Nationwide Inpatient Sample, 6,248 discharges from South Carolina are
missing external cause of injury codes (E Codes). No other NIS records are affected.
An ASCII file containing the missing information is available. The separate E Code fil…
-
hcup-us.ahrq.gov/db/nation/nrd/LimitationsonUsingtheNRD.pdf
December 25, 2022 - LimitationsonUsingNRD
Limitations on Using the Nationwide Readmissions Database (NRD)
Consider Each Year of the NRD as a Separate Sample
The patient linkage numbers (NRD_VisitLink) do not track the same patient across years of the
NRD. Additionally, the hospital identifiers (HOSP_NRD) do not track the sampled ho…
-
hcup-us.ahrq.gov/figures/4_03.jsp
66
65
19
98%
CA
367
361
87
98%
AZ
59
58
13
98%
return to report
-
hcup-us.ahrq.gov/figures/4_05.jsp
87 (98.9%)
25
WI
131
127 (96.9%)
32
WV
55
55 (100.0%)
18
return to report
-
hcup-us.ahrq.gov/figures/4_04.jsp
84 (98.8%)
25
WI
125
124 (99.2%)
28
WV
55
55 (100.0%)
19
return to report
-
hcup-us.ahrq.gov/db/nation/kid/kid_statelevelestimates.jsp
February 01, 2022 - "Can I use older years of the KID that include State identifiers to do State-level estimates?"
AHRQ strongly advises researchers against using the KID to estimate State-specific statistics. Prior to 2012, State is available as a KID data element. However, these KID samples were not designed to yield a representativ…
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hcup-us.ahrq.gov/db/nation/neds/stats/FileSpecifications_NEDS_2020_Core.TXT
January 01, 2020 - Data Set Name: NEDS_2020_CORE
Number of Observations: 28037034
Total Number of Data Elements: 73
Columns Description
======== ===========
1 - 4 Database name
6 - 9 Discharge year of data
11 - 21 File name
23 - 25 Data element number
27 - 45 Data element name…
-
hcup-us.ahrq.gov/db/nation/neds/stats/FileSpecifications_NEDS_2018_Core.TXT
January 01, 2018 - Data Set Name: NEDS_2018_CORE
Number of Observations: 35807950
Total Number of Data Elements: 72
Columns Description
======== ===========
1 - 4 Database name
6 - 9 Discharge year of data
11 - 21 File name
23 - 25 Data element number
27 - 45 Data element name
47 …