Which of the following is NOT covered by Basic Hospital insurance?

Basic Hospital insurance typically covers essential services provided to patients during their stay in a hospital, focusing on inpatient care. The primary aim of this type of insurance is to cover costs directly associated with hospitalization such as room and board, nursing care, and certain types of medical procedures that require a patient to be admitted to the hospital.

Diagnostic X-rays, ambulance services, and inpatient doctor treatments align with standard coverage provided by Basic Hospital insurance plans, as these services are often necessary for providing care during a hospital stay. Diagnostic X-rays are essential for assessing a patient's condition before or during admission, ambulance services provide transportation to the hospital when needed, and inpatient doctor treatments are fundamental to the care provided to patients during their hospital stays.

On the other hand, outpatient surgical procedures typically occur outside the confines of a hospital setting and do not require an overnight stay. As such, these procedures fall outside the coverage scope of Basic Hospital insurance, which is designed for inpatient services. Therefore, the correct choice identifies a service that is generally categorized as outpatient, highlighting the differences in coverage focus between inpatient and outpatient care.