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hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_1999.jsp
January 01, 1999 - discharge abstracts. … and number of inpatient stays in NIS data. … : This inpatient discharge-level file contains data for 100% of the discharges from a sample of hospitals … Subsample Inpatient Core Files: Each of these discharge-level files contain all data elements from … The SID contain the universe of the inpatient discharge abstracts in the participating HCUP States, translated
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hcup-us.ahrq.gov/reports/statbriefs/sb306-overview-sepsis-2016-2022-addendum.pdf
January 01, 2022 - For trend figures, 2022 data are an additional
data point. … Sample (NIS),
2016–2020 and 2022
7
Discharge Disposition for Inpatient Stays for Sepsis … The distribution of the number of inpatient
stays for sepsis by discharge disposition was based on stays … The unit of analysis is the hospital discharge (i.e., the inpatient stay), not a person or patient. … primary payer, 2016–2019, 2020, and 2022
Discharge Disposition for Inpatient Stays for Sepsis
Figure
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hcup-us.ahrq.gov/datavisualizations.jsp
February 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 … Data Visualizations
HCUP Visualization of Monthly Inpatient Trends
The HCUP … Visualization of Monthly Inpatient Trends displays State-specific monthly trends in inpatient stays related … This information is based on the 2018-2020 State Inpatient Databases (SID), plus 2021 quarterly inpatient
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hcup-us.ahrq.gov/reports/statbriefs/sb309-sepsis-race-2016-2021.pdf
January 01, 2021 - ■ In 2019 and 2021, the proportion of inpatient stays for sepsis that resulted in a discharge to home … Data Source
This Statistical Brief uses data from the HCUP 2016–2021 National Inpatient Sample (NIS) … The unit of analysis is the hospital discharge (i.e., the inpatient stay), not a person or patient. … Discharge status
Discharge status reflects the disposition of the patient at discharge from the hospital … which the patient died in the hospital
■ Denominator of inpatient stays for sepsis (any discharge
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hcup-us.ahrq.gov/db/nation/nis/reports/2007niscomparisonrpt.jsp
May 01, 2016 - Reports & Publications
Data Visualizations
Data Query Tools
Home
About … Reports Archive
DATA VISUALIZATIONS
DATA QUERY TOOLS … Summary 2007 HCUP Nationwide Inpatient Sample (NIS) Comparison Report. … , and the MedPAR inpatient data from the Centers for Medicare and Medicaid Services (CMS). … National Hospital Discharge Survey 2007 Public Use Data File Documentation . Washington, DC: U.S.
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hcup-us.ahrq.gov/db/vars/dispuniform/nassnote.jsp
August 01, 2019 - Value was added beginning in the 2000 HCUP data.
62
Discharge, transferred to another rehabilitation … Value was added beginning in 2001 HCUP data.
63
Discharge, transferred to a long term care hospital … Value was added beginning in the 2001 HCUP data.
64
Discharge, transferred to a nursing facility … Value was added beginning in the 2002 HCUP data.
65
Discharge, transferred to a psychiatric hospital … Prior to the 2001 data, value 40 "Died at Home" was mapped to missing (.).
99
Discharge alive, destination
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hcup-us.ahrq.gov/db/nation/neds/stats/FileSpecifications_NEDS_2015Q1Q3_IP.TXT
December 06, 2017 - Data Set Name: NEDS_2015Q1Q3_IP
Number of Observations: 3177611
Total Number of Data … year of data
11 - 19 File name
21 - 23 Data element number
25 - 43 Data element name … 45 Length of data element
48 Non-zero number of digits after decimal point for numeric data … element
50 - 53 Data element type (Num=numeric; Char=character)
55 - 154 Data element label … discharge record
NEDS 2015 Q1Q3 IP 150 PR_IP2 7 Char Procedure 2 from inpatient discharge
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hcup-us.ahrq.gov/db/nation/neds/stats/FileSpecifications_NEDS_2015Q4_IP.TXT
December 06, 2017 - discharge record
NEDS 2015 Q4 IP 46 I10_PR_IP2 7 Char ICD-10-PCS Procedure 2 from inpatient … discharge record
NEDS 2015 Q4 IP 47 I10_PR_IP3 7 Char ICD-10-PCS Procedure 3 from inpatient … discharge record
NEDS 2015 Q4 IP 48 I10_PR_IP4 7 Char ICD-10-PCS Procedure 4 from inpatient … discharge record
NEDS 2015 Q4 IP 49 I10_PR_IP5 7 Char ICD-10-PCS Procedure 5 from inpatient … discharge record
NEDS 2015 Q4 IP 50 I10_PR_IP6 7 Char ICD-10-PCS Procedure 6 from inpatient
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hcup-us.ahrq.gov/reports/methods/2003_02.pdf
January 01, 2003 - Final Report on Calculating Nationwide
Inpatient Sample (NIS) Variances for Data Years 2011 and Earlier … Calculating National Inpatient Sample (NIS) Variances, Data Years 2012 and
Later. … In the NIS files from 1998 forward, the discharge weight data element is named DISCWT. … The frame contained only hospitals in
the 33 states for which all-payer discharge data were made available … Sources of 2007 HCUP Inpatient Data for the NHQR and the NHDR
Table 3.
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hcup-us.ahrq.gov/reports/ataglance/HCUPanalysisCdiff.pdf
April 12, 2021 - Short- and long-term attributable costs of Clostridium
difficile-associated disease in nonsurgical inpatients … METHODS
Longitudinal inpatient discharge data from the Healthcare Cost and Utilization Project (HCUP … The HCUP State Inpatient Databases (SID) contain the universe of the inpatient discharge abstracts from … • Discharge was missing POA on all secondary diagnoses. … Number of HCUP State Inpatient Databases (SID) Used Each Year to Create for National
Estimates
Data
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hcup-us.ahrq.gov/reports/statbriefs/sb177-Hospitalizations-for-Opioid-Overuse.jsp
August 01, 2014 - Reports & Publications
Data Visualizations
Data Query Tools
Home
About … Reports Archive
DATA VISUALIZATIONS
DATA QUERY TOOLS … About the SID
The HCUP State Inpatient Databases (SID) are hospital inpatient databases from data … The SID contain the universe of the inpatient discharge abstracts in the participating HCUP States, translated … HCUPnet generates statistics using data from HCUP's Nationwide Inpatient Sample (NIS), the Kids' Inpatient
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hcup-us.ahrq.gov/reports/statbriefs/sb306-overview-sepsis-2016-2021.pdf
January 01, 2021 - Distribution of the number of inpatient stays for sepsis, by patient population and discharge
disposition … The distribution of the number of inpatient
stays for sepsis by discharge disposition was based on stays … Data Source
This Statistical Brief uses data from the HCUP 2016–2021 National Inpatient Sample (NIS) … The unit of analysis is the hospital discharge (i.e., the inpatient stay), not a person or patient. … Discharge status
Discharge status reflects the disposition of the patient at discharge from the hospital
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hcup-us.ahrq.gov/kidoverview.jsp
July 01, 2025 - KID Overview
Overview of the Kids' Inpatient Database (KID)
The Kids' Inpatient Database … HCUP inpatient data are based on administrative data—discharge abstracts created by hospitals for billing … For 2022, there are three discharge-level files and one hospital-level file:
Discharge-level files … Core File is a single discharge-level file containing commonly used data elements (e.g., age, expected … Severity File is a single discharge-level file containing additional data elements to aid in identifying
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hcup-us.ahrq.gov/db/nation/kid/reports/CalculatingKIDVariances.pdf
December 16, 2005 - Calculating Variances Using the 1999 Nationwide Inpatient Sample … The Kids’ Inpatient Database (KID) is a
nationwide sample of pediatric discharges from HCUP State Inpatient … The KID is a unique and powerful database that contains hospital inpatient stays for children. … The frame contains only hospitals
in the 36 states for which all-payer discharge data were made available … mean weighted discharge total for each
hospital h in stratum s.
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hcup-us.ahrq.gov/datainnovations/grants.jsp
July 01, 2016 - 2010 to improve statewide all-payer, hospital-based encounter-level data (inpatient, emergency department … Successfully linked laboratory data to hospital discharge data
Established a Master Patient ID (including … and analytical models to better predict hospital outcomes such as readmissions, mortality, and inpatient … These data linked all-payer hospital discharge data and death certificates to support a wide range of … Hospital Inpatient Discharge Data; collecting tribal identifier data; evaluating the quality of race
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hcup-us.ahrq.gov/nisoverview.jsp
July 01, 2025 - The NIS is sampled from the State Inpatient Databases (SID), including all inpatient data that are currently … Inpatient Sample" to the " National Inpatient Sample." … Because inpatient data are available for many individual States through the HCUP Central Distributor, … 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
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hcup-us.ahrq.gov/reports/methods/2005-07.pdf
January 01, 2005 - Calculating Kids’ Inpatient Database
(KID) Variances. 2005. … The Kids’ Inpatient Database (KID) is a
nationwide sample of pediatric discharges from HCUP State Inpatient … The frame contains only hospitals
in the 36 states for which all-payer discharge data were made available … mean weighted discharge total for each
hospital h in stratum s. … Sources of 2007 HCUP Inpatient Data for the NHQR and the NHDR
Table 3.
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hcup-us.ahrq.gov/reports/statbriefs/sb303-Comorbidities-Adult-Hospitalizations-2019.pdf
January 01, 2019 - Unit of analysis
The unit of analysis is the hospital discharge (i.e., the hospital stay), not a person … Service line
Each discharge was assigned hierarchically into a single hospital service line based on … The MS-DRG grouper first assigns the
discharge to an MDC based on the principal diagnosis. … If the discharge involves an
operating room procedure, it is assigned to one of the surgical MS-DRGs … For this Statistical Brief, when more than one payer is listed for a hospital discharge, the first-listed
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hcup-us.ahrq.gov/db/vars/dispuniform/nrdnote.jsp
August 01, 2015 - Value was added beginning in the 2000 HCUP data.
62
Discharge, transferred to another rehabilitation … Value was added beginning in 2001 HCUP data.
63
Discharge, transferred to a long term care hospital … Value was added beginning in the 2001 HCUP data.
64
Discharge, transferred to a nursing facility … Value was added beginning in the 2002 HCUP data.
65
Discharge, transferred to a psychiatric hospital … Prior to the 2001 data, value 40 "Died at Home" was mapped to missing (.).
99
Discharge alive, destination
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hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2022.pdf
November 01, 2024 - These inpatient data include clinical and
resource use information typically available from discharge … The NIS is sampled from the State Inpatient Databases (SID), which include all inpatient data
that are … INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS)
Overview of NIS Data
The National Inpatient … outpatient data
• ICD-10-PCS: procedure coding on inpatient data. … NIS Data Sources, Hospitals, and Inpatient Stays
The NIS is sampled from the State Inpatient Databases