SEDD Database Documentation

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	SEDD Database Documentation The SEDD are a set of longitudinal State-specific emergency department (ED) databases included in the HCUP family. The SEDD capture discharge information on all emergency department visits that do not results in an admission. These databases are created by AHRQ through a Federal-State-Industry partnership.
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State Emergency Department Databases (SEDD)

The SEDD are a set of longitudinal State-specific emergency department (ED) databases included in the HCUP family. The SEDD capture discharge information on all emergency department visits that do not result in an admission. Information on patients seen in the emergency room and then admitted to the hospital is included in the State Inpatient Databases (SID). The following links provide detailed database documentation for the SEDD.

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Restrictions on the Use of the SEDD

SEDD Data Use Agreement (PDF file, 54 KB; HTML)

Description of SEDD Files

Introduction to the SEDD (PDF file, 104 KB)

HCUP Quality Control Procedures (PDF file, 146 KB)
Describes procedures used to assess data quality

File Composition
Describes types of hospitals and types of records included in each SEDD
- Number of Visits by Year
- Number of Hospitals by Year

File Specifications

File Size by Year

Availability of Data Elements

Availability of Data Elements by Year

Description of Data Elements in the SEDD

Description of Data Elements for All States Across All Years

Summary Statistics

HCUP Coding Practices (PDF, 16 KB; HTML)
Describes how HCUP data elements are coded

HCUP Hospital Identifiers (PDF file, 82 KB; HTML)
Describes data elements that characterize individual hospitals

Load Programs

SAS Load Programs

SPSS Load Programs

HCUP Tools: Labels and Formats

Clinical Classifications Software (CCS)

Format Programs

HCUP Formats Program
Creates SAS formats to label the values of selected categorical data elements in HCUP files

HCUP Diagnosis and Procedure Groups Formats Program
Creates SAS formats to label the values of HCUP Diagnosis and Procedure Groups data elements, including Clinical Classification Software (CCS) data elements

ICD-9-CM Formats Program
Creates SAS formats to label the values of ICD-9-CM Diagnoses and Procedures

SEDD Related Reports

SEDD Related Reports

HCUP Supplemental Files

American Hospital Association Linkage Files

Internet Citation: HCUP SEDD Database Documentation. Healthcare Cost and Utilization Project (HCUP). July 2009 Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/state/sedddbdocumentation.jsp.

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If you have comments, suggestions, and/or questions, please contact hcup@ahrq.gov.

Last modified 7/16/09