The percentage of costs of a covered health care service you pay after you’ve paid your deductible. The insurance company pays the rest.
An 80% /20% coinsurance in health insurance means the insurance company pays 80% of the bill.
Example: A $1,000 doctor’s bill would be paid at 80%, or $800. You would be responsible for $200.
Keep in mind most doctors will honor an in-Network PPO discount before the bill is split.
The higher the percentage the insurance company
pays, the higher your premium will be. A 50/50 plan
will cost less that a 70/30 or 80/20. Some plans have
NO COINSURANCE which will be more expensive.