What are the functions and coverage characteristics of health insurance?

Functions:
Routine care; such as shots, vaccinations, doctor check-ups, mammograms, to prevent a serious illness.
Emergency care; such as broken bone, immediate illness, or overdoses, and all or a percentage of ambulance fees.
Prescriptions; pays for a percentage or prescriptions that are prescribed by a doctor.
Chronic illness; cancer, tumors, or other cases that require a repeated treatment.

Characteristics:
Basic health care insurers provide for emergency assistance, routine care, prescriptions, and cases of chronic illness.