HCUPnet
HCUPnet is an interactive tool for identifying, tracking, analyzing, and comparing statistics on hospital and emergency care. HCUPnet provides statistics from the HCUP nationwide databases -- the Nationwide Inpatient Sample, the Kids' Inpatient Database, and the Nationwide Emergency Department Sample -- and from State Inpatient Databases and State Emergency Department Databases for those States that have agreed to participate. HCUPnet is available on the HCUP section of the AHRQ Web site.

AHRQ Quality Indicators (QIs)
AHRQ Quality Indicators (QIs) use hospital administrative data to highlight potential quality concerns, identify areas that need further study and investigation, and track changes over time. More information about the AHRQ QIs and downloadable software are available on the HCUP section of the AHRQ Web site.

Note: The ICD-10-CM/PCS tools are now available in beta version for public evaluation. Please visit the following link to download the tools: ICD-10-CM/PCS Beta Test Tools Page. Official implementation of ICD-10-CM/PCS is scheduled for October 1, 2014. .

Clinical Classifications Software (CCS) for ICD-9-CM
Clinical Classifications Software (CCS) provides a method for classifying ICD-9-CM diagnoses or procedures into clinically meaningful categories, which can be used for aggregate statistical reporting of a variety of types. Select to access more information about the CCS and the CCS downloadable software. (Updated for codes valid through FY 2013.)

Chronic Condition Indicator
The Chronic Condition Indicator provides users an easy way to categorize ICD-9-CM diagnosis codes into one of two categories: chronic or not chronic. The tool can also assign ICD-9-CM diagnosis codes into 1 of 18 body system categories. Select to access more information about the CCI and the CCI downloadable software. (Updated for codes valid through FY 2013.)

Comorbidity Software
Comorbidity Software assigns variables that identify coexisting conditions on hospital discharge records. Select to access more information about the Comorbidity Software and the downloadable software. (Updated for codes valid through FY 2013.)

Procedure Classes
Procedure Classes facilitate research on hospital services using administrative data by identifying whether a procedure is (a) diagnostic or therapeutic, and (b) minor or major in terms of invasiveness and/or resource use. Select to access more information about the Procedure Classes and downloadable software. (Updated for codes valid through FY 2013.)

Clinical Classifications Software for Services and Procedures
CCS-Services and Procedures provides a method for classifying Current Procedural Terminology (CPT) codes and Healthcare Common Procedure Coding System (HCPCS) codes into clinically meaningful procedure categories. The procedure categories are identical to the CCS, with the addition of specific categories unique to professional service codes in CPT/HCPCS. Users must agree to a license to use the CCS-Services and Procedures before accessing the software. Select for more information about the CCS-Services and Procedures, for instructions for downloading, and for the license agreement CCS-Services and Procedures. (Updated for codes valid through 2012.)

Clinical Classifications Software for Mental Health and Substance Abuse (CCS-MHSA)
Clinical Classifications Software for Mental Health and Substance Abuse (CCS-MHSA) has been integrated into the Clinical Classifications Software tool (CCS). Select to access more information about the CCS and the CCS downloadable software.

Utilization Flags
Utilization Flags reveal additional information about use of health care services by combining information from UB-04 revenue codes and ICD-9-CM procedure codes to create flags, or indicators, of utilization. Use of procedures and services such as ICU, CCU, NICU, and specific diagnostic tests and therapies can be assessed with these Utilization Flags. Select to access more information about the Utilization Flags and downloadable software. (Updated for codes valid through 2010.)

Clinical Classifications Software (CCS) for ICD-10 (for mortality reporting)
Clinical Classifications Software (CCS) provides a method for classifying ICD-10 mortality diagnoses into clinically meaningful categories, which can be used for aggregate statistical reporting of a variety of types. Note that this is the original ICD-10 system for mortality reporting; not ICD-10-CM/PCS. Select to access more information about the CCS for ICD-10.

Cost-to-Charge Ratio (CCR) Files
The HCUP Cost-to-Charge Ratio Files are hospital-level files designed to supplement the data elements in the NIS, KID, and SID databases. These files can be used to estimate the resource cost of inpatient care and its variation across hospitals and conditions. Select to access more information on the CCR files.

Hospital Market Structure (HMS) Files
The HCUP Hospital Market Structure Files are hospital-level files designed to supplement the data elements in the NIS, KID, and SID databases. Select to access more information on the HMS files.

HCUP Supplemental Variables for Revisit Analyses
The HCUP Supplemental Variables for Revisit Analyses are discharge-level files designed to facilitate analyses that need to track patients within a state and across time and hospital settings (inpatient, emergency department, and ambulatory surgery) while adhering to strict privacy guidelines. Select to access more information on the HCUP Supplemental Variables for Revisit Analyses.

American Hospital Association (AHA) Linkage Files
The AHA Linkage Files are hospital-level files that contain a small number of data elements that allow researchers to link hospital identifiers on the HCUP state databases to the American Hospital Association Annual Survey Databases (Health Forum, LLC © 2012). Linkage is only possible in States that allow the release of hospital identities. Select to access more information on the AHA Linkage Files.

Nationwide Inpatient Sample Trends (NIS-Trends) Files
The NIS-Trends Files are discharge-level files that provide the NIS data user with both the trend weights and data elements that are consistently defined across data years. The purpose of the NIS-Trends Files is to ease the burden on researchers conducting longitudinal analyses. Select to access more information on the NIS-Trends Files.

Nationwide Inpatient Sample (NIS) Hospital Ownership Files
The NIS Hospital Ownership Files are hospital-level files designed to facilitate analysis of the NIS by hospital ownership categories. These HCUP supplemental files allow the user to identify in the 1998-2007 NIS the following three types of hospitals: government, nonfederal; private, non-profit; and private, investor-own. Select to access more information on the NIS Hospital Ownership Files.

Kids’ Inpatient Database Trends (KID-Trends) File
The KID-Trends File is a discharge-level file that provides KID data users with trend weights consistently defined between 1997 and later years. Select to access more information on the KID-Trend File.

MONAHRQ
MONAHRQ is a software product that enables organizations - such as state and local data organizations, Chartered Value Exchanges, hospital systems, and health plans - to input their own hospital administrative data and generate a data-driven Web site. Select to access more information about MONAHRQ.