SASD File Composition

SASD File Composition - Iowa

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

Beginning in data year 2004, Iowa Hospital Association (IHA) provided their Statewide Outpatient Database to HCUP. This database contains information on all emergency room, ambulatory surgeries, and observation visits from Iowa hospitals and surgery centers. IHA identified the different types of outpatient records as follows:

Emergency Room - Any record with a HCPCS code of 99281-99285 or 99291 and with a revenue code 0450, 0451, 0452, 0456, 0459
Outpatient Surgery - Any record not classified as Emergency Room AND with a revenue code 0360, 0361, 0369, 0480, 0481, 0490, 0499, 0750, 0759.
Observation - Any record not classified as Emergency Room or Outpatient Surgery AND with a revenue code 0760, 0762, 0769.

In 1996 only, the IHA provided ambulatory surgery data from acute care hospitals and not freestanding ambulatory surgery centers. Between 1997 and 2003, no Iowa outpatient data is available through HCUP.

Additional information is available on the AHRQ Website.
If you have comments, suggestions, and/or questions, please contact hcup@ahrq.gov.

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Internet Citation: HCUP Central Distributor SID Iowa File Composition. Healthcare Cost and Utilization Project (HCUP). March 2007
Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompia.jsp.

Last modified 3/22/07