The CURB-65 Score is a validated clinical prediction tool designed to assess the severity of community-acquired pneumonia (CAP) and estimate 30-day mortality risk. Developed from the British Thoracic Society (BTS) criteria, it incorporates five easily measured parameters: confusion, blood urea nitrogen, respiratory rate, blood pressure, and age. The simplicity of the score allows for rapid bedside assessment in any clinical setting, including emergency departments, primary care, and field environments. It is especially useful for triaging patients, determining the need for hospitalization, and identifying those who may require ICU admission. While highly practical, CURB-65 should be interpreted alongside clinical judgment, comorbidities, and social factors. Limitations include reduced sensitivity in younger patients and in atypical pneumonia presentations.