All income is reportable, especially income reported on an IRS form, e.g. 1099. It appears that the school paid your health care premium (or imputed income based on the value of having free access to health care if needed).
You definitely need to report the income. The question is how. I like ColeenD3's suggestion, for how to enter it.
But, be advised that The IRS considers anything on a 1099-NEC to be self employment income. If you try reporting 1099-NEC income as anything else, there is a chance of hearing from the IRS.
