CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 33-88110) pertaining to the UWSI/BCBSUW 401(k) Plan Employees' Retirement Plan (the Plan) of our report dated June 1, 1999, with respect to the financial statements and schedules of the Plan included in this Annual Report (Form 11-K) for the year ended December 31, 1998. ERNST & YOUNG LLP Milwaukee, Wisconsin June 29, 1999