Another quick health insurance question: Coinsurance Lifetime Maximum

I’m looking over a health plan’s options, and realize how little I know about all of the terms. I’ve found out most everything, except for the Coinsurance Lifetime Maximum.

Here’s the details they present:
Coinsurance: 90%

Coinsurance limit: $10,000 (family)

Lifetime Maximum: Unlimited
So, I understand that the coinsurance is the arrangement for covering expenses after I meet the deductible (after that, they pay 90% of the costs and I pay 10%, up to $10,000 per year; above that, they pay 100% for most costs).

But what does “Lifetime Maximum: Unlimited” mean?

Lifetime Maximum is the most a plan will pay per person during a lifetime. If it’s unlimited, there is obviously no cap on the amount the plan will pay.

Good. Thanks.