- 
                                        
hcup-us.ahrq.gov/reports/statbriefs/sb242-Pediatric-ED-Visits-2015.pdf
January 01, 2015 - against medical advice (0.7%), or discharge to an unknown destination (8.8%). … Topics include hospital inpatient, 
ambulatory surgery, and emergency department (ED) use and costs, … For ED visits that result in an 
inpatient admission to the same hospital, the first-listed diagnosis … status 
Discharge status reflects the disposition of the patient at discharge from the ED and includes … constructed using records 
from both the HCUP State Emergency Department Databases (SEDD) and the State Inpatient
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/datainnovations/clinicaldata/AHRQFINALREPORTVHI.jsp
July 01, 2016 - to VHI's administrative statewide inpatient hospital database. … "VHI Awarded Contract to Link Clinical Data with Hospital Discharge Data"
Virginia Health Information … AHRQ Patient Safety Indicators (PSI) Comparison of Pilot Data, a National Inpatient Sample, and a Veterans … . 
 
 
 3 
 Decubitus Ulcer 
 33.10 
 8.70 
 24.57 
 15.20 
 15.92 
 
 
 4 
 Death among surgical inpatients … Discharge Day 
 I.
                                     
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hcup-us.ahrq.gov/db/vars/prccsr_aaannn/nedsnote.jsp
May 01, 2015 - Database Information 
 
 
 
 Research Tools 
 
 
 Request Data … 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 … The team extensively reviewed the CCSR at each stage of its development using the HCUP State Inpatient
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/vars/prccsr_aaannn/kidnote.jsp
September 01, 2008 - Database Information 
 
 
 
 Research Tools 
 
 
 Request Data … 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 … The team extensively reviewed the CCSR at each stage of its development using the HCUP State Inpatient
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/vars/prccsr_aaannn/nisnote.jsp
September 01, 2008 - Database Information 
 
 
 
 Research Tools 
 
 
 Request Data … 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 … The team extensively reviewed the CCSR at each stage of its development using the HCUP State Inpatient
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/statbriefs/sb286-ED-Frequent-Conditions-2018.pdf
January 01, 2018 - principal diagnoses, organized by body system or 
condition, are presented for visits that result in discharge … Information on the most common diagnoses in 2018 among hospital 
inpatient stays, which include those … Topics include hospital inpatient, 
ambulatory surgery, and emergency department use and costs, quality … For ED visits that result in an inpatient admission, the first-
listed diagnosis is the principal diagnosis … Secondary diagnoses are conditions that coexist at the time of 
the ED visit or inpatient admission,
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/methods/2007_05.pdf
January 01, 2007 - The average was higher than the national inpatient 
CCR in the same year. … overlaps with a list of 30 
comorbidities that have been shown to significantly affect charges for inpatients … This compares to a national, inpatient CCR in the same year of.386. … The authors also would like to thank the state data organizations that 
contributed data to HCUP State … In these states 556 hospitals had usable discharge data and cost reports.
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/statbriefs/sb227-Emergency-Department-Visit-Trends.pdf
December 01, 2016 - Introduction 
 
Over half of the 35.4 million annual inpatient admissions in the 
United States begin … Topics include hospital inpatient, ambulatory surgery, and emergency 
department use and costs, quality … data from the U.S. … For ED visits that result in an 
inpatient admission to the same hospital, the first-listed diagnosis … 15 Statistics were obtained from an HCUPnet (www.hcupnet.ahrq.gov) query of discharge
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nrd/HCUPAnalysisICD10Readmissions.pdf
June 12, 2020 - -CM to ICD-10-CM/PCS on October 1, 2015, on condition-specific 
readmission statistics by comparing discharge … The NRD 
addresses a large gap in healthcare data—the lack of nationally representative information on … The NRD addresses a large gap in healthcare 
data—the lack of nationally representative information on … Records in the NRD 
were limited to inpatient stays for patients aged 1 year or older because patient … this reason, 
the analysis included the following time periods: 
• ICD-9-CM in fiscal year (FY) 2015: Discharge
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/nis_2004_stspecific_restr.jsp
January 01, 2004 - 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 … Care Cost Containment Council requested that no more than 40% of Illinois discharges appear in any discharge … Missing Discharges 
			 
 
 
 
 
 
   
 
 The Nebraska Hospital Association prohibits the release of discharge … Virginia Health Information  
 
 Confidentiality of Hospitals  
 
 
 
 
 
 
   
 
 
				The Nationwide Inpatient
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/datainnovations/clinicaldata/Finalreport100109.jsp
July 01, 2016 - HCUP Supplemental Files 
 NIS-Trend Weights Files 
 NIS Hospital Ownership Files 
 NIS 1993-2002 Discharge-Level … data sets, identified AHRQ inpatient quality indicator (IQI) measures could be refined to a higher level … Mortality Using Automated Inpatient, Outpatient, and Laboratory Databases"  Gabriel J. … and discharge dates, admission source, discharge type, age, sex, ICD-9-CM diagnosis codes with present-on-admission … Part of this issue was due to our request for a full one-year’s worth of lab data for all inpatients
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/methods/2008_03.pdf
January 01, 2008 - Second, how well does the AS CCR correlate with the inpatient CCR? … The average inpatient CCR for the 
hospitals included was .379. … The correlation of AS CCR with inpatient CCR is not very high (.5). … In these 
states 863 hospitals had usable discharge data and cost reports, but due to missing variables … In these 
states 863 hospitals had usable discharge data and cost reports, but due to missing variables
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/vars/ageday/nisnote.jsp
September 01, 2008 - HCUP Supplemental Files 
 NIS-Trend Weights Files 
 NIS Hospital Ownership Files 
 NIS 1993-2002 Discharge-Level … When processing the 1996 HCUP inpatient data, no adjustment was made for the leap year when age was calculated … California assigned the date of birth to admission date when the admission date was not reported and the discharge … New York 
 Beginning with the 2008 data, the HCUP data element AGEDAY is missing  (.) … prior to 1998 and 
 Oregon reported age in days at discharge beginning in the 1998 data.
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/toolssoftware/ccsr/PRCCSR-User-Guide-v2025-1.pdf
November 01, 2024 - Variation in the Number of Inpatient Stays in the U.S. by CCSR Category Position .44 
Table E.3. … Required Input Data Element 
Data Element Names 
in Program Purpose 
How to Modify the 
Data Element … HCUP 
State Inpatient Databases (SID). … The 
Uniform Hospital Discharge Data Set (UHDDS) defines the principal procedure reported on an 
inpatient … discharge record as the procedure that was performed for definitive treatment (rather 
than one performed
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/toolssoftware/ccsr/DXCCSR-User-Guide-v2025-1.pdf
November 01, 2024 - data is 
documented in Appendix C: Default CCSR for Principal Diagnosis in Inpatient 
Data. … in Appendix C: Default CCSR for the Principal 
Diagnosis in Inpatient Data. … year 
2016 
Required only if using 
data that is a mixture of 
inpatient and outpatient 
data: DBTYPE … This is only 
needed if the input data are a mixture of 
inpatient and outpatient data. … Data Set (UHDDS) defines the principal diagnosis in inpatient 
data as the condition established after
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/state/siddist/siddist_hospital.jsp
January 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 … SID: File Composition - Number of Hospitals by Year 
 
   
 
 
 HCUP State Inpatient Databases (SID … Some community hospitals may not be included in the SID because their data were not provided by the data
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/APS-DRGsV20WeightsManual.pdf
January 06, 2025 - II.1 
 
 
METHODS 
 
 
DATA 
 
Data from the 2000 National Inpatient Sample (NIS) of the Healthcare … The 2000 NIS contains information on all inpatient stays from 994 hospitals, a total of 
7,450,992 records … Few 
records (n=90) were assigned to APS-DRG 4690, Principal Diagnosis Invalid As Discharge 
Diagnosis … Even when performed as an inpatient, few patients have 
Major CCs associated with them. … Mortality weights ranged from 0 to 36.441 with a mean mortality of 0.0247 deaths 
per discharge.
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/kid/SASload_KID_1997_CORE_TrendWt.SAS
January 01, 1997 - ********
*   KID_1997_CORE_TrendWt.SAS:
*      The following SAS code will load the ASCII
*      inpatient … '-66666666666.66' = .C
    OTHER = (|15.2|)
  ;
  RUN;
*******************************;
*  Data … Step                  *;
*******************************;
DATA KID_1997_CORE_TrendWt; 
INFILE 'KID
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/vars/ecoden/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 … E codes are compared to a list of ICD-9-CM codes valid for the discharge date. … In addition, the number of E codes that could be retained on a discharge record increased. … External Cause of Injury code (E code) information in 2005 and 2006 
 
			In 2005 and 2006, the Oklahoma inpatient
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/race/50_state_r_e_rpt.jsp
July 01, 2016 - , Doctor's First Reports of Occupational Injury or Illness (DFR), Hospital Discharge Data, Worker's Compensation … Data, CHIME data (hospital discharge and ED data from Hospital Association), US Census Bureau (Census … from BRFSS, Vital Records Information System, Multiple - Cause of Death File; Hospital Discharge Data … , MI Inpatient Database, MI Care Improvement Registry, HEDIS, MI Maternal Morbidity Database, Pregnancy … Data, National Hospital Discharge Survey (CDC),YBRFSS, Youth Tobacco Survey 
 Geographic (State) 
 African