In any proceeding before a court of probate, the court may issue an order for the disclosure of medical information relevant to the determination of the matter before the court. The order may require the disclosure of such medical information to: (1) The court; (2) any executor, administrator, conservator, guardian or trustee appointed by the court; (3) any attorney representing the individual who is the subject of such medical information; (4) any guardian ad litem for the individual who is the subject of such medical information; (5) any physician, psychiatrist or psychologist who has been ordered by the court to conduct an examination of such individual; or (6) any other party to the proceeding determined by the court to require such medical information in the interests of justice. Any such medical information filed with the court shall be confidential.