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Central Distributor SASD: Description of Data Elements

HOSPID - HCUP hospital identification number
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes

There are up to three different types of hospital identifiers included in the HCUP databases.

  • The data source's own number scheme for identifying hospitals and facilities (DSHOSPID),
  • The hospital identifier used by the American Hospital Association (AHAID and IDNUMBER), and
  • A unique HCUP hospital identifier (HOSPID).

The hospital entity as defined by the data source may differ from the hospital entity as defined by the AHA. For example, the data source treats two separate facilities as two hospitals, while the AHA Annual Survey treats the two facilities as a single hospital, or vice versa. For consistency across states, HCUP defines hospitals in accordance with the American Hospital Association Annual Survey of Hospitals. During HCUP data processing, the data source's identification of the hospital is reconciled with the identification of the hospital in the AHA Annual Survey of Hospitals. For detailed information about this linking process, see the special report on HCUP Hospital Identifiers.

The HCUP hospital identifier (HOSPID) is a re-identification of the AHA hospital identifier and is defined as:

  • SSnnn, where SS = State FIPS Code, and
  • nnn = an arbitrary number unique to the state.

SID, SASD, and SEDD: HOSPID is missing for some hospitals because an AHA hospital identifier cannot be determined. Hospitals may not be registered with the AHA or the source-provided information cannot be matched to the AHA.

NIS and KID: The data element HOSPID is available in the Core, Hospital, Severity, and DX_PRGrps files prior to data year 2012.

Uniform Values
VariableDescriptionValueValue Description
HOSPIDHCUP hospital identification number5(n)HCUP hospital identification number
State Specific Notes


Beginning with the 2011 data, hospital identifiers on the Central Distributor SID, SASD, and SEDD are only available to data purchasers whose primary affiliation is with a college, university, or government agency and whose intended use of the data does not involve product development, market research, or commercial applications. This distinction is made when you purchase the Central Distributor files.

New York

For 1988-1993, facilities are identified in the HCUP New York SASD by either DSFREE or HOSPID. In the HCUP New York Ambulatory surgery data, the HCUP hospital identifier is missing (HOSPID = .) if the facility is a freestanding ambulatory surgery facility that is not associated with an AHA-recognized hospital.

Beginning in 1994, the facility identifier is not included in the New York Ambulatory surgery file.


Internet Citation: HCUP Central Distributor SASD Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). May 2024. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 5/22/24