insurance co. paying for treatment

can someone please post the steps needed to submit a claim to my insurance co. I have obtained a letter from my endocrinologist and have my receipts from going to see him. Is there anything else I need to get? How do I go about submitting my claim? I have aetna insurance, if this makes a difference. Thanks to all who reply!

If you had done a search on the words Insurance and Electrolysis, you would have come across at least two post strings tha cover this.

Click on these links:
first insurance link
second post string on Insurance Payment
The first link has the letter your doctor must write and send to the insurance company.