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hcup-us.ahrq.gov/db/nation/nis/NIS97_Overview_122104.pdf
September 01, 2002 - The SID contain the universe of the inpatient discharge abstracts in the participating
HCUP States, … formatted data files are included:
Inpatient Core Files: These inpatient discharge-level files contain … discharge record, along with the data element necessary to link to
the discharge record in the Core … discharge record, along with the data element necessary to link to
the discharge record in the Core … Subsample Inpatient Core Files: Each of these discharge-level files contain all data
elements from
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hcup-us.ahrq.gov/reports/trendtables/summarytrendtables.jsp
May 01, 2025 - Reports & Publications
Data Visualizations
Data Query Tools
Home
About … HCUP Supplemental Files
NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level … Reports Archive
DATA VISUALIZATIONS
DATA QUERY TOOLS … State statistics are displayed by discharge month and national and regional statistics are displayed … by discharge quarter.
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hcup-us.ahrq.gov/reports/statbriefs/sb177-Hospitalizations-for-Opioid-Overuse.pdf
August 01, 2014 - Population Denominator Data for use with the HCUP Databases (Updated with
2012 Population data). … HCUP
databases bring together the data collection efforts of State data organizations, hospital associations … SID
The HCUP State Inpatient Databases (SID) are hospital inpatient databases from data organizations … The SID contain the universe of the inpatient discharge abstracts in the
participating HCUP States, … HCUPnet generates statistics using data from HCUP's Nationwide Inpatient Sample (NIS),
the Kids' Inpatient
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hcup-us.ahrq.gov/db/state/siddist/siddist_filecompks.jsp
November 01, 2018 - were constructed from the Kansas Hospital Association inpatient discharge files. … Types of Facilities Included in the Files Provided to HCUP by the Partner
These data include inpatient … discharge data from general acute care hospitals that are a member of the Kansas Hospital Association … Exclusion of Records During HCUP Data Processing
Records with a discharge disposition of "still … a patient" and "admitted as an inpatient" were excluded from the HCUP Kansas inpatient data.
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hcup-us.ahrq.gov/db/state/siddist/siddist_filecompak.jsp
June 01, 2024 - HCUP Supplemental Files
NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level … , Alaska supplies discharge abstract data for inpatient stays
from Alaska general acute care and … Prior to 2015 data, Alaska supplied discharge abstract data for
inpatient stays from Alaska general … Exclusion of Records During HCUP Data Processing
Records with a discharge disposition of "still a … patient" or "admitted
as an inpatient" were excluded from the HCUP Alaska inpatient data.
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hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/hi31.pdf
March 23, 2010 - Results Status
*Patient Middle Initial Observation Value
*Admission Date/Time Unit of Measure
*Discharge … to HHIC Inpatient discharge data
DATA QUALITY/STANDARDIZATION
Too much, too little, what is this … Code
• Deterministic/Probabilistic Linking
– Multiple linking iterations performed to link the
inpatient … discharge data to one or more lab
records based on 9 key variables
– Linking Iterations “customized … ” due to variances
on key linking variables for multiple hospitals
OVERALL
Inpatient Discharges
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hcup-us.ahrq.gov/db/state/siddist/siddist_filecompme.jsp
August 01, 2006 - were constructed from the Maine Health Data Organization inpatient discharge files. … Types of Facilities Included in the Files Provided to HCUP by the Partner
These data include inpatient … discharge data from general acute care hospitals, including psychiatric and rehabilitation hospitals … Exclusion of Records During HCUP Data Processing
Records with a discharge disposition of "still … a patient" and "admitted as an inpatient" were excluded from the HCUP Maine inpatient data.
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hcup-us.ahrq.gov/db/state/siddist/siddist_filecompmi.jsp
April 01, 2025 - Types of Facilities Included in the Files Provided to HCUP by the Partner
Michigan supplied discharge … abstract data for inpatient stays from general acute care and specialty hospitals (e.g., rehabilitation … Michigan inpatient data:
Records that were marked as replicated by the data source were excluded … MHA included a flag on the discharge records that indicated if the record was replicated. … Records from non-Michigan hospitals were deleted during HCUP data processing
Records with a discharge
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hcup-us.ahrq.gov/reports/natstats/his96/table2a.htm
January 01, 1996 - Hospital Inpatient Statistics, 1996
Table 2. … Statistics for 1996
HCUP Nationwide Inpatient Sample, by multi-level CCS procedure (principal
procedure … You may need to scroll your browser to the right to see all the data.) … Nationwide Inpatient Sample. … Return to Hospital
Inpatient Statistics 1996 Return to
Contents for Table 1 Return to
Contents for
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hcup-us.ahrq.gov/reports/statbriefs/sb175-Hospital-Cost-Utilization-Projections-2013.pdf
January 01, 2013 - data from 2003 through 2011 along with early 2012 data from nine
HCUP States to develop national projections … HCUP
databases bring together the data collection efforts of State data organizations, hospital associations … The reports use HCUP administrative health care data.
13
About the SID
The HCUP State Inpatient … Databases (SID) are hospital inpatient databases from data organizations
participating in HCUP. … The SID contain the universe of the inpatient discharge abstracts in the
participating HCUP States,
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hcup-us.ahrq.gov/reports/ataglance/HCUPanalysisSepsisTrendsUS.pdf
November 10, 2020 - The underlying data tables for each figure are provided in Appendix C. … HCUP databases bring together the data collection
efforts of State data organizations, hospital associations … resource of encounter-level health care
data. … The 2018 NIS sampling frame includes data from the HCUP State Inpatient Databases
(SID) from 47 States … DATA TABLES
Any Diagnosis of Sepsis
Table 1a-1: Number of Adult, Nonmaternal Inpatient Stays with
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hcup-us.ahrq.gov/db/nation/nis/NISChangesBeginningDataYr2016.pdf
September 01, 2022 - These inpatient data include
clinical and resource use information typically available from discharge … and Utilization Project (HCUP) National Inpatient
Sample: Change in Structure and Data Elements Caused … There are three discharge-
level files and one hospital-level file:
Discharge-level files
• Core … File is a single file containing commonly used data elements (e.g., age,
expected primary payer, discharge … includes a complete list of data element changes beginning with the 2016
National Inpatient Sample
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hcup-us.ahrq.gov/db/nation/kid/KIDIntroduction2022.pdf
December 01, 2024 - outpatient data
• ICD-10-PCS: procedure coding on inpatient data.
2 ICD-9-CM: International … KID Data Sources, Hospitals, and Inpatient Stays
Table 2 in Appendix I contains a summary of the data … KID Data Elements
All releases of the KID contain two types of data: inpatient stay records and hospital … Data Elements in the 2022 KID Inpatient Core File
For prior years, refer to the KID Description of Data … Data Elements in the 2022 KID Inpatient Core File
Table 2.
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hcup-us.ahrq.gov/reports/statbriefs/sb256-Opioids-Endocarditis-Inpatient-Stays-2016.pdf
January 01, 2016 - Discharge status of inpatient stays related to opioid use disorder and/or endocarditis,
2016
Abbreviation … Among OUD-endocarditis inpatient stays, 17.8 percent resulted in discharge against medical advice,
compared … Historical data were drawn from the 2005, 2010, and 2014 National (Nationwide)
Inpatient Sample (NIS … Sample
The National (Nationwide) Inpatient Sample (NIS) is based on data from community hospitals, … Discharge status
Discharge status reflects the disposition of the patient at discharge from the hospital
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hcup-us.ahrq.gov/sidoverview.jsp
July 01, 2025 - SID Overview
Overview of the State Inpatient Databases (SID)
The State Inpatient Databases … The SID includes inpatient discharge records from community hospitals in that State. … The SID files encompass all patients, regardless of payer, providing a unique view of inpatient care … , such as:
Principal and secondary diagnoses and procedures
Admission and discharge status … Return to Contents
SID File Structure
The SID are calendar year files based on discharge
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hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompin.jsp
September 01, 2024 - HCUP Supplemental Files
NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level … The facility is not listed in the AHA database, but the facility provides
inpatient discharge data … The facility is not listed in the AHA database, but the facility provides
inpatient discharge data … Exclusion of Records During HCUP Data Processing
Beginning with 2016 data, records with a discharge … Prior to 2010, records
with a designation of "admitted as an inpatient" were excluded from the
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hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompnj.jsp
August 01, 2006 - set that includes both inpatient and outpatient data. … Starting in 2017, the outpatient data are based on admission date, while inpatient records continue to … be based on discharge date. … The facility is not listed in the AHA database, but the facility provides inpatient discharge data to … The facility is not listed in the AHA database, but the facility provides inpatient discharge data to
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hcup-us.ahrq.gov/reports/natstats/his95/clinclas.htm
January 01, 1999 - By integrating core data elements comparable to those in a
typical discharge abstract, HCUP has created … selected State government and private data
organizations with statewide hospital inpatient data systems … The HCUP Nationwide Inpatient Sample (NIS) contains resource use information
included in a typical discharge … Other problems inherent in hospital inpatient data include missing data,
underreporting of socially … How accurate are hospital discharge data for evaluating
effectiveness of care?
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hcup-us.ahrq.gov/reports/methods/2015_09.jsp
January 01, 2015 - HCUP Methods Series Calculating National Inpatient Sample (NIS) Variances for Data Years 2012 and Later … Final Report on Calculating National Inpatient Sample (NIS) Variances for Data Years 2012 and Later. … For data prior to 2012, see the document titled Calculating Nationwide Inpatient Sample Variances, Data … Top
INTRODUCTION
The National Inpatient Sample 3 (NIS), a database of United States hospital discharge … The frame contained only hospitals in the States for which all-payer discharge data were made available
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hcup-us.ahrq.gov/reports/statbriefs/sb223-Ambulatory-Inpatient-Surgeries-2014.pdf
January 01, 2014 - This report evaluates both inpatient and outpatient surgery data. … The first-listed procedure is the procedure that is
listed first on the discharge record. … Inpatient data define this as the principal procedure—the procedure
that is performed for definitive … Sample
The National Inpatient Sample (NIS) is based on data from community hospitals, which are defined … Unit of analysis
The unit of analysis is the ambulatory surgery visit or hospital discharge (i.e., the