Health Care-associated infections studies project: An American Journal of Infection Control and National Healthcare Safety Network data quality collaboration case study

•Application of NHSN Urinary Tract Infection (UTI) surveillance criteria.•Determination of the date of event when two diagnostic tests are present.•Application of Repeat Infection Timeframe. This National Healthcare Safety Network (NHSN) surveillance case study is part of a case-study series in the American Journal of Infection Control (AJIC). These cases reflect some of the complex patient scenarios Infection preventionists have encountered in their daily surveillance of health care-associated infections using NHSN definitions. Objectives have been previously published.