A party may obtain discovery of the existence and terms of any insurance agreement under which any person carrying on an insurance business may be liable to satisfy part or all of a judgment which may be entered in the action or to indemnify or reimburse for payments made to satisfy the judgment. Information concerning the insurance agreement is not by reason of such disclosure admissible in evidence at trial. For the purposes of this paragraph, an application for insurance shall not be treated as part of an insurance agreement.
231 Pa. Code r. 4003.2