Primary coverage refers to insurance that covers an individual or a group for specific medical expenses. This type of insurance typically provides protection against high costs associated with hospitalization, surgical procedures, and other forms of treatment. It may also cover preventative care such as routine check-ups, vaccinations, and screenings. Primary coverage is often provided through health insurance plans that are purchased by individuals or offered as a benefit by employers. The term "primary" in this context means that the insurer will pay first for eligible medical expenses before any other sources of payment such as secondary insurance or out-of-pocket costs.