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KID Database Documentation
The Kids' Inpatient Database (KID) is a set of pediatric hospital inpatient databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
 
KID Database Documentation

The Kids' Inpatient Database (KID) is the largest publicly-available all-payer pediatric inpatient care database in the United States, containing data from two to three million hospital stays. Its large sample size is ideal for developing national and regional estimates and enables analyses of rare conditions, such as congenital anomalies, as well as uncommon treatments, such as organ transplantation. The KID has been produced every three years (1997, 2000, 2003, 2006, 2009, 2012). Hospital discharge data for 2015 contains a mix of ICD-9 and ICD-10 data (the first three quarters of 2015 contain ICD-9 data and the last quarter contains ICD-10). Because of the complexities of analyzing a mixed data year, the next KID will be available for 2016 and will be comprised of ICD-10 data only.

The links below provide detailed documentation for the KID, from a high-level Overview to all the detailed specifications, restrictions, and resources necessary for researchers working and publishing with the KID.
 
Description of KID Database Restrictions on Use File Specifications and Load Programs Data Elements Additional Resources for Data Elements   ICD-10-CM/PCS Data Included in 2016 KID Information on Change to KID Design in 2000 Known Data Issues KID Supplemental Files HCUP Tools: Labels and Formats Obtaining HCUP Data

Internet Citation: KID Database Documentation. Healthcare Cost and Utilization Project (HCUP). September 2018. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/kid/kiddbdocumentation.jsp.
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Last modified 9/17/18