SID File Composition

SID File Composition - Washington

This section describes the original data files obtained from data organizations in participating states and used to create HCUP databases. Information about the source of the original data files, the types of hospitals included in those files, the records excluded during HCUP processing (if any), and other pertinent information to understand the composition of these files are presented.

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Source Files

The HCUP Washington inpatient files were constructed from the Washington Comprehensive Hospital Abstract Reporting System (CHARS) data received from the Washington State Department of Health.

Which Hospitals

Washington supplied uniform bills for inpatient stays from all acute care units, alcohol dependency units, bone marrow transplant units, extended care units, psychiatric units, rehabilitation units, group health units, and swing bed units.

Not all hospitals report a full calendar year of data. Some hospitals close during the year; other hospitals have technical problems that prevent them from reporting a full year.

Inclusion of Stays in Special Units

The documentation provided by Washington indicates that stays in special units within a hospital are included in the data. Records for these different types of care can be identified by the fourth digit of the source-supplied hospital identifier (DSHOSPID) on each patient record:

None =	General acute care
A =	Alcohol Dependency Unit
B =	Bone Marrow Transplant Unit
E =	Extended Care Unit
H =	Tacoma General/Group Health Combined
I =	Group Health only at Tacoma Hospital
P =	Psychiatric Unit
R =	Rehabilitation Unit
S =	Swing Bed Unit

Washington assigns this value to DSHOSPID based upon the type of unit discharging the patient.