You had a medical procedure done in 2009 but you did not get the bill until 2010 and you paid it then does this go towards by 2010 insurance deductible?

Probably not. The date on which services were rendered will usually be the determining factor. If you had already fulfilled your deductible for 2009, your insurance company may need to reconcile their books and may owe you a refund of some portion of your deductible.

However, if you had not otherwise met your deductible for 2009, it may still be possible for what you paid at the end of 2009 to be counted toward your 2010 deductible. Contact your health insurance company. In special circumstances like these, some health insurance companies will allow funds paid toward a deductible in the last quarter of one year to be applied towards the next year's deductible.