On my 1099R from Comm of Mass. Teachers Retirement System , I have in the left corner box "Insurance $2422 " There is no number to identify the box. What does this indicate?

[Irene2805]

For an explanation of the items on the 1099-R from the MA Teachers Retirement System, please go to this web page:   MTRS - Taxation of your benefit  Scroll down and click the down arrow next to About Your 1099-R tax form.  There is an explanation of all the boxes on the form.