I started receiving distribution from an annuity contract from a foreign company in foreign currency. I have no 1099-R. How do I enter this?

This is with an insurance company in Japan, and I will receive annual distribution for 10 years. I am not retired yet. It is a qualified plan under Japanese tax law but I don't think IRS would see it that way. I did not deduct the payment to this contract when I reported my income to IRS.