Final answer:
The statement from the patient, "I've had a cough and fever for three days," is known as the Chief Complaint (CC).
Step-by-step explanation:
In this scenario, the statement from the patient, "I've had a cough and fever for three days," is known as the Chief Complaint (CC). The chief complaint is the reason why the patient seeks medical attention and forms the basis of the patient's medical history. It provides important information that helps healthcare providers diagnose and treat the patient's condition.