Line 22b of Form IT-203 is the line where you report other additions that are not specifically listed on Form IT-203. This amount must sum of the entries from Form IT-225, line 1.
The additions that could pertain to your return start on page 17 of Instructions for IT-225. The allocation of the amount on IT-225 should match the amount on Form IT-203, Line 22b.
Once you determine which addition pertains to your return, and need additional assistance, please comment back so we can assist you further.
On Form IT-203, line 22b comes from form IT-225, line 9, Total Additions.
TurboTax Online
If you are using the CD/Download version of TurboTax, you can see the list of additions to income by going in to Forms Mode.
TurboTax Online
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