Box 14 is sort of a catch all that employers can use to report a variety of information, but its mostly just for informational purposes. It does not usually effect your tax return. There are some scenarios where Box 14 information needs to be accounted for in other areas of your federal or state returns.
In your case, your employer's payroll company probably just noted the transaction and then put it on there for informational purposes. Its not effecting your wages as it was already accounted for in your pay. You can leave it and just select "Other" as the description.
