Patient identification numbers are unique codes assigned to individuals within a healthcare system. These numbers help ensure that each patient's medical records, treatments, and billing information are accurately linked to the correct person. This system reduces the risk of errors and enhances patient safety. In many healthcare facilities, patient identification numbers are generated automatically when a patient first registers. They may be used in conjunction with other identifiers, such as social security numbers or insurance policy numbers, to streamline processes and improve the efficiency of patient care.