Check out the @cond flag for doxygen. In C# I hide some of our password encryption members like this:
//! @cond
private const String ENCRYPTEDFLAG = "xxxENCFLAGxxx";
private const String SEED = "hi_i_r_@_seed";
//! @endcond
The doxygen documentation would have you believe that you need a conditional symbol defined to doxygen and used on the @cond line, but that did not work for me. This method did.
