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hcup-us.ahrq.gov/db/nation/nrd/nrdarchive.jsp
December 01, 2024 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/db/state/sasddist/sasddist_ddeavailbyyear.jsp
June 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/db/state/siddist/siddist_ddeavailbyyear.jsp
August 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/db/nation/kid/reports/KID_2000_File_Composition.pdf
January 01, 2000 - files. … files. … stay files. … and Research discharge files. … Council files.
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hcup-us.ahrq.gov/doc/HCUP_DatabaseCatalog_NationwideDatabases.xlsx
January 01, 2022 - There are three types of supplemental files available: Hospital Cost-to-Charge Ratio Files for the NIS … Files for 1993-2002. … Hospital Cost-to-Charge Ratio (CCR) Files, 2001–2020
The CCR files are complimentary when ordering the … Information on these files is available on the HCUP-US website at
https://www.hcup-us.ahrq.gov/db/ccr … files are available only to purchasers of one or more NIS years in the 1993-2002 range.
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hcup-us.ahrq.gov/kidoverview.jsp
July 01, 2025 - NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … For 2022, there are three discharge-level files and one hospital-level file:
Discharge-level files … These two variables provide the linkage between the different discharge-level files. … The files are compressed and encrypted with 7-Zip©.
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hcup-us.ahrq.gov/spssload/spssload_search.jsp
August 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … Linkage File page with the following exception , load programs for IA, MN, and NE are included in the files
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hcup-us.ahrq.gov/tech_assist/index_mno.jsp
August 01, 2020 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … Supplemental Discharge-Level Files (1993-2002)
NRD
NRD Tutorial
O
Observation
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hcup-us.ahrq.gov/reports/factsandfigures.jsp
February 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/cdstats/cdstats_search.jsp
August 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/db/nation/sasloadprog.jsp
December 01, 2024 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … SAS load programs are used
to load the ASCII or CSV data files into SAS.
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hcup-us.ahrq.gov/db/nation/spssloadprog.jsp
December 01, 2024 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … SPSS load programs are used to load the ASCII or CSV data files into SPSS.
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hcup-us.ahrq.gov/db/vars/key_nass/nassnote.jsp
August 01, 2019 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … Its purpose is to uniquely identify records so that the data elements from different NASS files can be
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hcup-us.ahrq.gov/db/vars/aweekend/nassnote.jsp
August 01, 2019 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … Beginning in the 1998 HCUP files, the data element ADAYWK is replaced by admission weekend (AWEEKEND)
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hcup-us.ahrq.gov/toolssoftware/chronic_icd10/chronic_icd10.jsp
July 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … , System Requirements
Input files
User Guide: Chronic Condition Indicator Refined (CCIR) for
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hcup-us.ahrq.gov/toolssoftware/procedureicd10/procedure_icd10.jsp
July 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ … the Downloadable Procedure Classes Refined for ICD-10-PCS Files, Downloadable Files and Data Elements
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hcup-us.ahrq.gov/datainnovations/clinicaldata/lvcomm.jsp
February 01, 2025 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/reports/topicalrpts.jsp
October 01, 2024 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/hcup_web_wkshop.jsp
November 01, 2022 - and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery Flags for ICD-9-CM
HCUP Supplemental Files … NIS-Trend Weights Files
NIS Hospital Ownership Files
NIS 1993-2002 Discharge-Level Supplemental … Files
KID-Trend File
Cost-to-Charge Ratio (CCR) Files
Hospital Market Structure (HMS) Files … Supplemental Variables for Revisit Analyses
American Hospital Association (AHA) Linkage Files
AHRQ
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hcup-us.ahrq.gov/db/ccr/ip-ccr/IPCCR-UserGuide-2012-2019.pdf
January 01, 2019 - (CCR Files) are hospital-level files that can be linked to HCUP inpatient databases to
facilitate the … The AHA Linkage Files can be downloaded from the HCUP AHA Linkage
Files page on the HCUP User Support … CCR for Inpatient Files. … for Inpatient Files. … No separate files 4,099
2003 1,626 No separate files 4,216
2002 1,602 No separate files