Source Files

The South Dakota Association of Healthcare Organizations (SDAHO) provides their Statewide Outpatient Database to HCUP.

Beginning in 2013, this database includes information on all emergency room, ambulatory surgeries, observation visits, therapies, outpatient lab and radiology, and other outpatient services from South Dakota hospitals and surgery centers.

SDAHO identifies the different types of outpatient records as service markers based on the patient's last place of service. The assignment of the service marker is therefore hierarchical and based on the following definitions:

• Emergency Room - Any record with a with a revenue code 045X or 068x.
• Ambulatory Surgery - Any record not classified as Emergency Room AND with a revenue code 036X, 0480, 0481, 049X, or 075x.
• Observation - Any record not classified as Emergency Room or Ambulatory Surgery AND with a revenue code 0760, 0762, 0769.
• Therapies - Any record not classified as Emergency Room, Ambulatory Surgery, or Observation AND with a revenue code 041x-044x, 093x, 0940-949, or 95x. This includes respiratory, physical, occupational and speech therapies, medical rehabilitation, therapeutic rehabilitation or athletic training respectively.
• Outpatient (Lab/Radiology) Only - Any record not classified as Emergency Room, Ambulatory Surgery, Observation, or Therapies AND with a revenue code 030x, 032x-035x, 040x, 061x, 073x-074x, or 092x exclusively. This includes Diagnostic and Routine Laboratory Testing, Diagnostic and Therapeutic Radiology, Nuclear Medicine, CAT Scans, Imaging, MRIs, EKGs and ECGs, EEGs.
• Other Outpatient - Any record not classified as Emergency Room, Ambulatory Surgery, Observation, Therapies, or Outpatient (Lab/Radiology) Only AND with a revenue code 038x-039x, 046x-047x, 051x-052x, 064x-066x, 077x, 082x-085x, or 088x exclusively. This includes Blood Products and Storage, Audiology and Pulmonary Clinics, Hospice and Preventative Care, Hemodialysis, peritoneum and miscellaneous dialysis.

Given the hierarchical assignment of place of service, records for patients treated in the ED, and then treated and released from observation care will be marked as an ED record.

Prior to 2013, this database only included information on emergency room, ambulatory surgeries, and observation visits.

Selection of Records for Inclusion in the SEDD

All records identified by South Dakota as ED are included in the SEDD (HCUP data element STATE_ED=1 based on service marker ED).

Additionally, any other records with evidence of ED services that are flagged by the variable HCUP_ED (i.e., HCUP_ED>0) during HCUP processing are included in the SEDD. If a record in the SASD also has evidence of ED services based on the HCUP criteria (HCUP data element HCUP_ED not equal to 0), then the SASD record is also included in the SEDD. These records will have the same value for the HCUP data element KEY.

SEDD records with evidence of other types of outpatient services, such as observation, can be identified by the data element OPService.

Types of Facilities Included in the Files Provided to HCUP by the Partner

SDAHO collects emergency department data from all hospital-owned EDs in the State.

A comparison of the number of hospitals included in the SEDD and the number of hospitals reported in the AHA Annual Survey is available starting in data year 2010.

Hospital-owned EDs do not always report data for a full calendar year. Some open or close during the year; others have technical problems that prevent them from reporting data for all months in a year.

Exclusion of Records During HCUP Data Processing During HCUP Data Processing

Beginning with 2016 data, records with a discharge disposition of "still a patient" are retained in the HCUP SEDD. Prior to 2016 data, these records were excluded.