Objective: The novel coronavirus disease 2019 (COVID-19) has spread all over the world from the first case. Although some criteria used in diagnosis, the diagnosis of COVID-19 in asymptomatic patients and patients with non-respiratory symptoms remains a big concern. The patients with COVID-19 could apply to the hospital with non-specific symptoms. Therefore, we aimed to evaluate the incidence of missed diagnosed COVID-19 pneumonia on abdominal computed tomography (CT) performed in patients admitted to our urology outpatient clinic in this study. Methods: The files of patients admitted to the urology outpatient clinic were evaluated retrospectively from April 1 to November 1, 2020. The patients with pulmonary symptoms and previously diagnosed with COVID-19 were excluded from the study. The patients who underwent abdominal CT at the urology outpatient clinic for any reason were included in this study. The demographic data and CT findings of these patients were recorded. The rates of missed diagnosed COVID-19 pneumonia detection on the lung base images of abdominal CT were evaluated. In addition, the patients without abdominal CT were excluded from this study. Results: One thousand and twenty-four patients were included in this study. We observed that 99 (9.7%) of these patients had findings related to COVID-19 pneumonia on the lung base images of abdominal CT. Although 885 (86.4%) patients had no pathological pulmonary findings, 40 (3.9%) patients had other pathological pulmonary findings. Conclusion: COVID-19 disease has become a pandemic worldwide and continues to exist as a significant problem. All health-care professionals, including urologists, play an active role in the diagnosing and treating this disease. Therefore, it should be kept in mind that COVID-19 pneumonia should be evaluated in patients admitted to the urology outpatient clinic with renal colic or abdominal pain. [ABSTRACT FROM AUTHOR]