How does health insurance work?

How does health insurance work? Imagine you have a $100,000 heart surgery, which is a covered medical expense under your health insurance plan, and let’s say this health insurance plan has a $1,000 annual deductible, 20% coinsurance after deductible, and $2,000 out-of-pocket limit per year.*

*Not all health insurance plans feature deductible or coinsurance.
May not apply to policies with an effective date of 9/23/10 or later.