Final answer:
When a new patient is registered in the EHR system, they are assigned a unique identification number to keep track of their medical records and ensure privacy.
Step-by-step explanation:
When a new patient is registered in the EHR system, a unique identification number is assigned to them.
This identification number helps to keep track of the patient's medical records and ensure that all the information is correctly associated with the right patient. It is also used for privacy and security purposes.
For example, if two patients have the same name, the identification number can help differentiate between them and prevent any confusion.