Could you answer this health insurance question?

I recieved a health insurance bill post surgery. It gives me: 1. Submitted charges- 3,000 2. Ineligible amount- 2,000 3. Deductible applied- $0.00 4. Covered amount- 1,000 5. Rate 6. Benefit- 900.00 What does the benefit mean? Do I have to pay anything out of pocket?
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It appears to me to be this; The hospital submitted a bill for $3000. The PPO payment agreement for this procedure is $1000, so the hospital has have to write off the $2000 that is considered ineligible. That leaves a charge of $1000. The insurance company paid $900 toward that, so you now owe $100 to the hospital. Since none was applied toward your deductible, I have to assume you had a $100 co-pay for this procedure.
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