What is co-insurance? Do I need to pay a deductible? Start hear to learn the basics of health insurance in America.; Part 2 in our Health Insurance series. More definitions of basic health insurance terms.; When shopping for a health plan, is an HMO or PPO better for you? Learn the basic differences between today's health insurance plans.; HMO or PPO? Co-insurance? Watch these segments of HealthiNation to learn the basics of health insurance.