Mortgage and Insurance

I just checked my CR and noticed a collection.  Strange I thought.  After some research, I determined that the debt is actually a bill for a medical copay my wife had for $76.  It is relatively recent – just went on in February.  I don’t ever remember getting anything in the mail about it from the CA.  We had so much stuff coming in from the hospital at one point that it’s possible I may have missed it from them.  In any event, it’s not mine, so why is it on my report?  The health insurance is in her name.  Of course, now I just want to remove it.  I don’t have a problem paying it in full obviously and would have had I known abut it before now.  Where to start with getting it removed is a whole other question…  Do I dispute with the CRA that it’s not my debt or do I start the HIPAA process?  I should also mention that other than having high util that I’m addressing, my credit is much better than my wife’s (this is my only blemish right now). Any advice is appreciated!