Exhibit 15.1





              Letter Re: Unaudited Interim Financial Information




June 27, 1996



Board of Directors and Shareholders'

CUC International Inc.

We are aware of the incorporation by reference in the Proxy Statement of Ideon
Group, Inc. that is made a part of the Registration Statement (Form S-4) and
Prospectus of CUC International Inc. for the registration of 17,170,469 shares
of its common stock of our report dated May 22, 1996 relating to the unaudited
condensed consolidated interim financial statements of CUC International Inc.
that are included in its Forms 10-Q for the quarter ended April 30, 1996.



Pursuant to Rule 436(c) of the Securities Act of 1933 our reports are not a part
of the registration statement prepared or certified by accountants within the
meaning of Section 7 or 11 of the Securities Act of 1933.


                                                     /s/ Ernst & Young LLP
                                                     ERNST & YOUNG LLP



Stamford, Connecticut