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Outpatient Utilization

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Data Source: Texas Health Care Information Collection (THCIC)

Data Description

Outpatient Utilization contains data on outpatient surgical and radiological procedures from Texas hospitals and Ambulatory Surgery Centers (ASCs). For more details on data source, data collection and data dictionary, see Public Use Data File (PUDF).

Measure Information

Number of Visits: For outpatient services in hospitals and ASCs, a visit is an outpatient event or a visit for a patient who received one or more invasive surgical or imaging procedure. Physician offices and health clinic data are not included.

County: County of patients' residence

Total Charges: The amount charged or billed for the entire visit including non-covered and ancillary charges. It does not reflect individual procedure charges or include professional charges from the health professionals that are contracted by the facility where the procedures are performed.

Expected Payment Source: The expected payer for the outpatient visits. The first-listed payer is used to categorize into general groups.

Race/Ethnicity: The patient"s race and ethnicity are combined. Hispanic race/ethnicity includes patients who identify themselves as Hispanic ethnicity regardless of race. The rest are grouped into their specific non-Hispanic race including White, Black, and Other.

Public Health Regions (PHRs): Eleven regions as categorized and defined by Texas DSHS (

Principal Diagnosis Group: The principal CCS condition. Clinical Classifications Software (CCS) is a diagnosis and procedure categorization scheme developed by the Healthcare Cost and Utilization Project (HCUP), a Federal-State-Industry partnership sponsored by the Agency for Healthcare Research and Quality (AHRQ). The principal ICD-10-CM diagnosis was categorized by CCS into a manageable number of clinically meaningful categories, making it easier to quickly understand patterns of diagnoses.

Procedure Group: The Enhanced Ambulatory Patient Group (EAPG) classification system is used for categorizing outpatient surgical and radiological procedures. The EAPG system was developed by 3M. It consolidates multiple procedures into the significant procedure groups, which simplifies the analysis and reporting.

Additional Information

Texas Health Care Information Collection (THCIC)