I don't know about other states, but from what I understand about my State (Minnesota), Personal Injury Protection (PIP) covers more than just medical expenses.  It also covers things for everybody in the vehicle, including those who do not qualify for a medical deduction on your tax return.

So unless you can figure out the cost for ONLY medical insurance that would ONLY cover you, your spouse and your children under age 26, I don't see it as being deductible.