I found that when amending a return that if you opt to have the software walk you through the steps that you will eventually get an option to add another or new 1099-R. It was from a continuing pension plan, but the software seemed to insist that it was withdrawn from an IRA.

Yes, the 1099-R reports all kinds of retirement income.  An IRA will have the 'IRA/Sep/Simple' box checked on the form, so you might want to double-check your form.  It's all taxed the same.

Here's more info on Form 1099-R.

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