- 
                                        
hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2017.jsp
January 01, 2017 - C.3:  Data Elements in the 2017 NEDS Supplemental Inpatient File 
 Table C.4:  Data Elements in the … outpatient data 
 ICD-10-PCS: procedure coding on inpatient data. … Supplemental Inpatient File:  This file contains data elements that are specific to the inpatient stay … File Structure of the 2015 NEDS 
 The NEDS data files are annual, calendar-year files based on discharge … Type of Data Element 
 HCUP Data Element 
 Coding Notes 
 
 
 Discharge counts 
 N_DISC_U 
 Number of
                                     
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC2_1993.PDF
January 01, 1993 - NATIONWIDE INPATIENT SAMPLE (NIS), RELEASE 2, 1993
Year
Page Numbers:
Record Layouts Description Data … date Num 3 14 48 49
MDC10 I:MDC, Version 10 Num 3 15 50 51
NDX I:Number of diagnoses on this discharge … Num 3 16 52 53
NPR I:Number of procedures on this discharge Num 3 17 54 55
File Specifications NIS … 46 58
SURGID_S I:Primary surgeon number (synthetic) Char 16 9 59 74
TOTCHG_X I:Total charges (from data … Char 16 46 168 183
TOTCHG I:Total charges (cleaned) Num 6 47 184 193
TOTCHG_X I:Total charges (from data
                                     
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hcup-us.ahrq.gov/reports/methods/2006_7.pdf
January 01, 2006 - discharge-level health care data. … Two HCUP discharge datasets were used in this report:   
 
• The HCUP Nationwide Inpatient Sample (NIS … data using the Uniform Hospital Discharge Data Set (UHDDS) and the 
Uniform Bill (UB-92) formats. … Provider-based QIs using Weighted Discharge Data (SID and NIS) 
 
 
a. … Standard error estimates for inpatient rates per 1,000 discharges using 
discharge counts in both the
                                     
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hcup-us.ahrq.gov/reports/statbriefs/sb122.pdf
October 01, 2011 - NCHS data brief, no 62. … If all hospital inpatients with any mention of septicemia are included—those with a principal diagnosis … mortality rate (data not shown). … Sample, 2009 
 
Data Source  
 
The estimates in this Statistical Brief are based upon data from the … 2009 HCUP Nationwide Inpatient 
Sample.
                                     
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hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2009.pdf
January 01, 2009 - Data Elements in the NEDS Supplemental Inpatient File ........................................... 5 … Supplemental Inpatient File:  This file contains data elements that are not specific to the ED, 
such … Refer to 
Appendix III, Table 3 for a list of data elements in the NEDS Supplemental Inpatient File. … Data Elements in the NEDS Supplemental Inpatient File 
 
Type of 
Data Element 
HCUP  
Data Element … Geographic Region from 
Two ED Data Sources, 2009 
ED Visits Resulting in Inpatient Admissions 
ED
                                     
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hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/ny14.jsp
September 01, 2014 - and 
 Risk-adjusted rates of serious post-procedure inpatient complications or post-discharge
mortality … date 
 Street Address 
 
 These data will be requested for the following cases: 
 
  Every inpatient … from the inpatient or outpatient facility. … Hospital discharge data routinely submitted to the Department of Health by participating
hospitals will … Otherwise, the study will be limited to inpatient PCIs that are documented in the inpatient SPARCS database
                                     
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hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2004_Design_Report.pdf
January 01, 2004 - records from approximately 1,000 hospitals selected from HCUP State Inpatient 
Databases (SID) data. … records from approximately 1,000 hospitals selected from HCUP State Inpatient 
Databases (SID) data. … Discharge outcomes of interest include trends in inpatient 
treatment with respect to: 
 
• Frequency … If an AHA 
community hospital could not be matched to the discharge data provided by the data source, … For example, when a sample hospital contributed only two quarters of discharge data to the 
NIS, the
                                     
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hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2010.jsp
January 01, 2010 - in the NEDS Supplemental Inpatient File 
 Table 4:  Data Elements in the NEDS Hospital Weights File … Supplemental Inpatient File:  This file contains data elements that are not specific to the ED, such … Refer to  Appendix III, Table 3  for a list of data elements in the NEDS Supplemental Inpatient File. … Data Elements in the NEDS Supplemental Inpatient File 
 
 
 
 Type of 
        Data Element 
 HCUP … Geographic Region from Two ED Data Sources, 2010 
 
 
 ED Visits Resulting in Inpatient Admissions
                                     
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hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2003_Design_Report_Edited_012506.pdf
January 01, 2003 - records from nearly 1,000 hospitals selected from HCUP State Inpatient Databases 
(SID) data. … records from nearly 1,000 hospitals selected from HCUP State Inpatient Databases 
(SID) data. … Discharge outcomes of interest include trends in 
inpatient treatments with respect to: 
 
• Frequency … If an AHA 
community hospital could not be matched to the discharge data provided by the data source, … For example, when a sample hospital contributed only two quarters of discharge data to the 
NIS, the
                                     
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hcup-us.ahrq.gov/reports/statbriefs/sb170-Operating-Room-Procedures-United-States-2011.jsp
February 01, 2014 - 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 … Unit of analysis 
The unit of analysis is the hospital discharge (i.e., the hospital stay), not a person … When more than one payer is listed for a hospital discharge, the first-listed payer is used. … HCUPnet generates statistics using data from HCUP's Nationwide Inpatient Sample (NIS), the Kids' Inpatient
                                     
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hcup-us.ahrq.gov/db/nation/kid/DataElements_KID_Hospital_2000.pdf
January 01, 2000 - Microsoft Word - kid_dde_hospnotes_2000.doc
  
 
 
 
 
 
 
 
 
HCUP KIDS’ INPATIENT DATABASE 
2000 … This weight has already been merged onto the KID Inpatient Core File by record 
type and KID_STRATUM … This 
weight has already been merged onto the KID Inpatient Core File by record type 
and KID_STRATUM … Elements 
 Hospital Weights File 
YEAR - Calendar year 
General Notes 
The discharge year (YEAR) is … In the 1988-1997 HCUP databases, 
YEAR is two-digits (e.g., if the discharge year is 1990, then YEAR
                                     
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hcup-us.ahrq.gov/reports/factsandfigures/2007/section1_TOC.jsp
January 01, 2007 - Reports & Publications 
 
 
 Data Visualizations 
 
 
 Data Query Tools 
 
 
 Home 
 
 
 About … Reports Archive 
 
 
 
 
 
 
 
 DATA VISUALIZATIONS 
 
 
 
 
 
 DATA QUERY TOOLS … HOSPITAL STAYS 
 
 
    	Section 1: Overview Statistics for Inpatient Hospital Stays
         
 EXHIBIT … Community Hospitals   PDF 
 EXHIBIT 1.2  Inpatient Hospital Stays and Average Length of Stay   PDF … EXHIBIT 1.3 Reasons for Hospital Stays 
 EXHIBIT 1.4 Discharge Status   PDF 
 EXHIBIT 1.5 Patient Age
                                     
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hcup-us.ahrq.gov/db/vars/s_disc_u/nedsnote.jsp
May 01, 2015 - 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 … S_DISC_U differs by HCUP database: 
 
 For the NIS prior to 2012, S_DISC_U contains the total number of inpatient … For the NIS beginning in 2012, S_DISC_U contains the total number of inpatient discharges for the stratum … For the NRD, S_DISC_U contains the total number of inpatient discharges for the stratum.
                                     
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hcup-us.ahrq.gov/db/vars/s_disc_u/nrdnote.jsp
August 01, 2015 - 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 … S_DISC_U differs by HCUP database: 
 
 For the NIS prior to 2012, S_DISC_U contains the total number of inpatient … For the NIS beginning in 2012, S_DISC_U contains the total number of inpatient discharges for the stratum … For the NRD, S_DISC_U contains the total number of inpatient discharges for the stratum.
                                     
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hcup-us.ahrq.gov/db/vars/s_disc_u/nisnote.jsp
September 01, 2008 - 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 … S_DISC_U differs by HCUP database: 
 
 For the NIS prior to 2012, S_DISC_U contains the total number of inpatient … For the NIS beginning in 2012, S_DISC_U contains the total number of inpatient discharges for the stratum … For the NRD, S_DISC_U contains the total number of inpatient discharges for the stratum.
                                     
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hcup-us.ahrq.gov/db/vars/s_disc_u/kidnote.jsp
September 01, 2008 - 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 … S_DISC_U differs by HCUP database: 
 
 For the NIS prior to 2012, S_DISC_U contains the total number of inpatient … For the NIS beginning in 2012, S_DISC_U contains the total number of inpatient discharges for the stratum … For the NRD, S_DISC_U contains the total number of inpatient discharges for the stratum.
                                     
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hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2005_Design_Report.pdf
January 01, 2005 - Each 
year the NIS contains data from approximately eight million hospital stays – all discharge 
records … from approximately 1,000 hospitals selected from HCUP State Inpatient Databases 
(SID) data. … from approximately 1,000 hospitals selected from HCUP State Inpatient Databases 
(SID) data. … Discharge outcomes of interest include trends in inpatient 
treatment with respect to: 
 
• Frequency … If an AHA 
community hospital could not be matched to the discharge data provided by the data source,
                                     
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hcup-us.ahrq.gov/db/nation/neds/NEDS2010Introductionv3.pdf
November 01, 2015 - Data Elements in the NEDS Supplemental Inpatient File ........................................... 5 … HCUP (11/30/15)   2010 NEDS Introduction  8 
Supplemental Inpatient File:  This file contains data elements … Refer to 
Appendix III, Table 3 for a list of data elements in the NEDS Supplemental Inpatient File. … Data Elements in the NEDS Supplemental Inpatient File 
 
Type of 
Data Element 
HCUP  
Data Element … Geographic Region from 
Two ED Data Sources, 2010 
ED Visits Resulting in Inpatient Admissions 
ED
                                     
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hcup-us.ahrq.gov/reports/statbriefs/sb185-Hospital-Intensive-Care-Units-2011.jsp
December 01, 2014 - HCUP Supplemental Files 
 NIS-Trend Weights Files 
 NIS Hospital Ownership Files 
 NIS 1993-2002 Discharge-Level … Types of hospitals included in HCUP State Inpatient Databases 
This analysis used State Inpatient Databases … Unit of analysis 
The unit of analysis is the hospital discharge (i.e., the hospital stay), not a person … 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
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/neds/NEDS2014Introduction.pdf
December 12, 2016 - Data Elements in the NEDS Supplemental Inpatient File ........................................ 7 
Table … Supplemental Inpatient File:  This file contains data elements that are not specific to the ED, 
such … Refer to 
Appendix C, Table C.3 for a list of data elements in the NEDS Supplemental Inpatient File. … Data Elements in the NEDS Supplemental Inpatient File 
Type of 
Data Element 
HCUP  
Data Element Coding … Data Elements in the NEDS Supplemental Inpatient File
	Table C.4.