SID Database Documentation

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	SID Database Documentation The SID are a set of longitudinal State-specific hospital inpatient databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
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State Inpatient Databases (SID)

The SID are State-specific files that contain all inpatient care records in participating states. Together, the SID encompass more than 95 percent of all U.S. hospital discharges. The uniform format of the SID helps facilitate cross-state comparisons. In addition, the SID are well suited for research that requires complete enumeration of hospitals and discharges within geographic areas or states. The following links provide database documentation for the SID.

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Restrictions on the Use of the SID

Data Use Agreement for the SID (PDF file, 41 KB; HTML)

Requirements for Publishing with HCUP Data

Description of SID Files

Introduction to the SID (PDF file, 181 KB; HTML)

HCUP Quality Control Procedures (PDF file, 142 KB)
Describes procedures used to assess data quality

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

File Specifications

File Size by Year

Availability of Data Elements

Availability of Data Elements by Year

Availability of HCUP Revisit Variables across States and Years

Description of Data Elements in the SID

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

Corrections to the SID

Arkansas SID, 2010 (PDF file, 22 KB)

Iowa SID, 2009-2010 (PDF file, 33 KB)

Kentucky SID, 2010 (PDF file, 22 KB)

Maryland SID, 2006-2009 (PDF file, 33 KB)

Massachusetts SID, 2003 (PDF file, 22 KB)

Nevada SID, 2008 (PDF file, 23 KB)

North Carolina SID, 2007-2008, discharge disposition (PDF file, 33 KB)

North Carolina SID, 2007-2008, charge detail (PDF file, 38 KB)

Washington SID, 2003-2006 (PDF file, 16 KB)

Load Programs

SAS Load Programs

SPSS Load Programs

HCUP Tools: Labels and Formats

Clinical Classifications Software (CCS)

Format Programs

DRG Formats Program
Creates SAS formats to label the values of each DRG and MDC category

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 Classifications Software (CCS) data elements

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

Severity Formats Program
Creates SAS formats to label the values of data elements in HCUP Severity Files

SID Related Reports

SID Related Reports

HCUP Supplemental Files

American Hospital Association Linkage Files

Cost-to-Charge Ratio Files

Hospital Market Structure (HMS) Files

HCUP Variables for Revisit Analysis

Internet Citation: HCUP SID Database Documentation. Healthcare Cost and Utilization Project (HCUP). November 2012. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/state/siddbdocumentation.jsp.

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Last modified 11/16/12