Health benefits do not belong on a 1099-R at all. Boxes 15-17 are only for local taxes (rare). Looks like the issuer of the 1099-R was trying to give you some additional information and used a unused box to put it in. Leave boxes 15-17 blank.
The TurboTax Form 1099-R follows the IRS approved Form 1099-R.
See IRS Form 1099-R - http://www.irs.gov/pub/irs-prior/f1099r--2016.pdf
Call the issuer for an explanation of what they are trying to inform you about.
