I suggest reviewing the instructions for Form 990-T and IRS Pub 598. I know nothing more than what is stated there.
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/i990t.pdf">https://www.irs.gov/pub/irs-pdf/i990t.pdf</a>
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/p598.pdf">https://www.irs.gov/pub/irs-pdf/p598.pdf</a>
However, it seems to me that the amount reported with code V in box 20 would be the sum of the separate types of UBTI and would be the total amount taxable to the IRA.
