Which of the following is not considered an outpatient setting?

Hospital stays over 23 hours and 59 minutes are classified as inpatient admissions rather than outpatient settings. In outpatient care, patients receive medical attention without being admitted to the hospital. This typically includes situations where patients undergo procedures or evaluations and are discharged the same day.

In contrast, urgent care centers, physician's offices, and ambulatory surgical centers all serve patients without the need for overnight hospitalization. These environments are designed for immediate or same-day care, reflecting the outpatient model where medical services are rendered while the patient remains in a non-inpatient status. Thus, a stay exceeding 23 hours transitions the patient to an inpatient category, making it the option that does not represent an outpatient setting.