-
hcup-us.ahrq.gov/db/nation/nis/APS-DRGs%20V21%20Weights%20Manual.pdf
January 06, 2025 - II.1
METHODS
DATA
Data from the 2001 National Inpatient Sample (NIS) of the Healthcare … The 2001 NIS contains information on all inpatient stays from 986 hospitals, a total of
7,452,727 records … Few records (n=58) 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. … recognize the following new discharge or patient status codes as valid
-
hcup-us.ahrq.gov/reports/statbriefs/sb112.pdf
May 01, 2011 - Population Denominator Data for Use with the HCUP Databases
(Updated with 2009 Population Data). … Unit of analysis
The unit of analysis is the ED visit or hospital discharge (i.e., the hospital stay … the ED or hospital multiple times in one year will be counted
each time as a separate "visit" or "discharge … organizations—such as State data
organizations, hospital associations, private data organizations, … HCUPnet generates statistics using data from HCUP's Nationwide Inpatient Sample
(NIS), the Kids' Inpatient
-
hcup-us.ahrq.gov/db/nation/nis/APS-DRGs-Weights_Public_v24.pdf
March 01, 2008 - Weights User Guide 7
Chapter 2: Methods Data
AP
DATA
Data from the 2002 National Inpatient Sample … The 2002 NIS contains information on all inpatient stays from 995 hospitals, a total of
7,853,982 records … Few records (n=32) 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. … To calculate an expected charge (expected LOS, or expected mortality) for a given
discharge record,
-
hcup-us.ahrq.gov/datainnovations/clinicaldata/AppendixEAHRQProjectDetails.jsp
October 05, 2010 - HCUP Supplemental Files
NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level … questionable data,
develop risk-adjusted measures of selected AHRQ inpatient quality indicators and … predictors of inpatient mortality and surgical complications for a wide variety of conditions and procedures … to develop preliminary risk-adjustment models for selected inpatient quality indications and patient … Predictive models for mortality will be developed for five medical Inpatient Quality Indicators (IQI;
-
hcup-us.ahrq.gov/db/vars/asource/kidnote.jsp
September 01, 2008 - HCUP Supplemental Files
NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level … care (this hospital)
2
Another hospital
522
Acute inpatient care (another hospital) … hospital care (not a hospital)
6m2, where m = 1-3
Other inpatient hospital care
8m2, where … residential care facility (2), ambulatory surgery (3), skilled nursing/intermediate care (4), acute inpatient … hospital care (5), other inpatient hospital care (6), newborn (7), prison/jail (8), other (9).
-
hcup-us.ahrq.gov/db/vars/prdayn/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 … Reports Archive
DATA VISUALIZATIONS
DATA QUERY TOOLS … Class 3: Significant procedure (date not required)
Class 4: Minor procedures not normally coded on inpatient … data.
-
hcup-us.ahrq.gov/db/vars/cmr_aaa/nassnote.jsp
August 01, 2019 - 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 … identify pre-existing conditions (i.e., comorbidities) that are not directly related to the reason for the inpatient … For data prior to the fourth quarter of 2015, the comorbidity measures are stored in the data element
-
hcup-us.ahrq.gov/db/vars/cmr_aaa/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 … Reports Archive
DATA VISUALIZATIONS
DATA QUERY TOOLS … identify pre-existing conditions (i.e., comorbidities) that are not directly related to the reason for the inpatient … For data prior to the fourth quarter of 2015, the comorbidity measures are stored in the data element
-
hcup-us.ahrq.gov/db/vars/cmr_aaa/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 … Reports Archive
DATA VISUALIZATIONS
DATA QUERY TOOLS … identify pre-existing conditions (i.e., comorbidities) that are not directly related to the reason for the inpatient … For data prior to the fourth quarter of 2015, the comorbidity measures are stored in the data element
-
hcup-us.ahrq.gov/db/vars/cmr_aaa/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 … Reports Archive
DATA VISUALIZATIONS
DATA QUERY TOOLS … identify pre-existing conditions (i.e., comorbidities) that are not directly related to the reason for the inpatient … For data prior to the fourth quarter of 2015, the comorbidity measures are stored in the data element
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Sources_and_Restrictions_2001.pdf
January 01, 2001 - HCUP NIS (6/5/03) 1 Sources of NIS Data and
State-Specific Restrictions
Sources of NIS Data … Care Cost Containment Council requested that no more
than 40% of Illinois discharges appear in any discharge … quarter of NIS
data … Missing Discharges
The Nebraska Hospital Association prohibits the release of discharge
records … VA Virginia Health Information
Confidentiality of Hospitals
The Nationwide Inpatient Sample
-
hcup-us.ahrq.gov/db/vars/dxn/nisnote.jsp
September 01, 2008 - HCUP Supplemental Files
NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level … In the HCUP inpatient databases, the first listed diagnosis is the principal diagnosis defined as the … Diagnoses are compared to a list of ICD-9-CM codes valid for the discharge date. … Nebraska
The Nebraska Hospital Association prohibits the release of discharge records for patients … The Vermont inpatient and outpatient source files come to HCUP in the same layout.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1c.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P21. … You may need to scroll your browser to the right to see all the data.)
P22. … You may need to scroll your browser to the right to see all the data.)
P23. … You may need to scroll your browser to the right to see all the data.)
P24.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1b.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P11. … You may need to scroll your browser to the right to see all the data.)
P12. … You may need to scroll your browser to the right to see all the data.)
P13. … You may need to scroll your browser to the right to see all the data.)
P14.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1d.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P31. … You may need to scroll your browser to the right to see all the data.)
P32. … You may need to scroll your browser to the right to see all the data.)
P33. … You may need to scroll your browser to the right to see all the data.)
P34.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1e.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P41. … You may need to scroll your browser to the right to see all the data.)
P42. … You may need to scroll your browser to the right to see all the data.)
P43. … You may need to scroll your browser to the right to see all the data.)
P44.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1f.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P51. … You may need to scroll your browser to the right to see all the data.)
P52. … You may need to scroll your browser to the right to see all the data.)
P53. … You may need to scroll your browser to the right to see all the data.)
P54.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1g.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P61. … You may need to scroll your browser to the right to see all the data.)
P62. … You may need to scroll your browser to the right to see all the data.)
P63. … You may need to scroll your browser to the right to see all the data.)
P64.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1h.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P71. … You may need to scroll your browser to the right to see all the data.)
P72. … You may need to scroll your browser to the right to see all the data.)
P73. … You may need to scroll your browser to the right to see all the data.)
P74.
-
hcup-us.ahrq.gov/reports/natstats/commdx/table1i.htm
February 11, 2011 - The top 100
principal procedures and their associated principal diagnoses: HCUP
Nationwide Inpatient … You may need to scroll your browser to the right to see all the data.)
P81. … You may need to scroll your browser to the right to see all the data.)
P82. … You may need to scroll your browser to the right to see all the data.)
P83. … You may need to scroll your browser to the right to see all the data.)
P84.