Emergency Department Encounters

On a quarterly basis (every three months), emergency departments submit abstracted information from individual patient records which include data on the patient’s ZIP code, birthdate, preferred language, service date, diagnoses, external cause of injury/morbidity, treatments/procedures, and expected source of payment. To protect individual patient confidentiality, data are aggregated into data products which are available on an annual basis.

Available Data Products#


County Frequencies by Patient County of Residence#

Summary data based upon the Patient’s County of Residence. The summary data includes discharge disposition, expected payer, sex and race group.

CPT Procedure Code Frequencies#

The statewide counts for each Current Procedural Terminology Code is displayed as Total, Principal, and Secondary Codes.

Encounters by Facility#

A listing, by hospital, of the number of ED encounters. Includes both ED encounters and admissions through the Emergency Department.

ICD-9/ICD-10-CM Code Frequencies – Diagnosis Codes#

The statewide counts of each Diagnosis Code is displayed as Total, Principal, and Secondary Codes.

ICD-9/ICD-10-CM Code Frequencies – External Cause of Injury/Morbidity Codes#

The statewide counts of each External Cause of Injury/Morbidity Code is displayed as Total, Principal, and Secondary Codes.

Patient Origin/Market Share Pivot Table#

This product contains the Patient Origin and Market Share Pivot Tables. These pivot tables identify where in the state (specified by ZIP Code) patients come from for treatment at a selected hospital, as well as the hospitals that patients from a selected ZIP Code or county go to for treatment.

Pivot Profile#

This pivot profile was developed using the emergency department data file and the inpatient discharge data file (for admissions originating in the emergency department) aggregated at the hospital level.  The summary data include number of visits, expected payer, discharge disposition, age groups, sex, preferred language spoken, race groups, principal diagnosis groups, and principal external cause of injury/morbidity groups. The data can also be summarized statewide or for a specific hospital county, ED service level, teaching/rural status, and/or type of control.

Facility Summary Reports#

Patient-level data reported by an individual facility is displayed in its Facility Summary Report.  The Summary Report presents a calendar year overview, with numerical and percentage breakdowns of reported data categories or groups, for the selected facility.  Regulatory requirements are based on the facility’s state licensure; report availability is therefore dependent on licensure.  Reports are made available pursuant to Health and Safety Code Section 128755 (c) (3), (d), and (e).

Select “Facility Summary Reports” from the first drop-down in the OSHPD Report Center.