Legal Question in Personal Injury in Michigan

I am not clear on which insurance you are asking about. The unrelated treatment would be covered by his medical insurance; the related treatment would be covered by his auto no-fault (PIP) coverage or his medical coverage or both, depending on the coverages he has. His wage loss would still be covered by his no-fault policy, if he was disabled from the injuries in the accident, even if he had some unrelated condition that required treatment. If he was already disabled from the other condition before the accident happened, he would not be entitled to wage loss benefits in the accident, unless he recovered from the previous condition and was still disabled from the accident. Complicated question, complicated response; hopefully, this answers your questions.