An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
Contact Us
Espanol
FAQs
Email Updates
Database Information
Research Tools
Request Data
Reports & Publications
Data Visualizations
Data Query Tools
Home
About
Need Help?
Login
HEALTHCARE COST & UTILIZATION PROJECT
User Support
Home
About
Need Help?
Login
Do Your own analysis
Explore Expert Research & Limited Datasets
DATABASE
INFORMATION
RESEARCH TOOLS
Tools for ICD-10-CM/PCS
Clinical Classifications Software Refined (CCSR)
Elixhauser Comorbidity Software Refined for ICD-10-CM
Chronic Condition Indicator Refined for ICD-10-CM
Procedure Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery Flags for Services and Procedures
Tools for ICD-9-CM
Clinical Classifications Software (CCS) for ICD-9-CM
Chronic Condition Indicator (CCI) for ICD-9-CM
Elixhauser Comorbidity Software for ICD-9-CM
Utilization Flags for Revenue Center Codes 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 Quality Indicators (QIs)
REQUEST DATA
REPORTS &
PUBLICATIONS
Favorites
Statistical Briefs
Summary Trend Tables
Findings-At-A-Glance
Publications
Information About Using HCUP Data
Methods Series
ICD-10-CM/PCS Resources
Database Reports
Additional Topics and Archives
Topical Reports
Enhancing Administrative Data
Reports Archive
DATA
VISUALIZATIONS
DATA QUERY
TOOLS
KID Database Documentation Archive
Description of KID Files
Introduction to the KID
2019 (
HTML
)
2016 (
HTML
)
2012 (
HTML
)
2009 (
HTML
)
2006 (
HTML
)
2003 (
HTML
)
2000
(PDF file, 215 KB)
1997
(PDF file, 14 KB)
Sources of KID Data and State-Specific Restrictions
2003 (
PDF
file, 110 KB;
HTML
)
2000
(PDF file, 106 KB)
Data Elements in the KID
2012
(PDF file, 120 KB)
2009
(PDF file, 65 KB)
2006
(PDF file, 31 KB)
2003 KID Data Elements
Core, letters A-L
(PDF file, 1,548 KB)
Core, letters M-Z
(PDF file, 1,209 KB)
Hospital
(PDF file, 228 KB)
Severity
(PDF file, 360 KB)
2000 KID Data Elements
Core
(PDF file, 1,085 KB)
Hospital
(PDF file, 228 KB)
1997 KID Data Elements
(PDF file, 222 KB)
Email Updates