I'm not aware of any denominations that have written statements denouncing Preterism as heretical.
Tim Lahaye, Thomas Ice, and many of the other "big shots" have made individual statements in the past concerned and trying to attach those who believe in the time statements and prophecies related to the first century as heretics.
Apologists and theologians like N.T. Wright, R.C. Sproul and Hank Hanegraaff have somewhat defended the hermeneutics of Preterist interpretation as being within reason. Sproul and Hanegraaf have at times identified as being Partial Preterists.
Claiming to be "Orthodox" does not automatically identify one as believing the creeds and councils as being above error; it merely identifies one as relating to the first century statements about Yeshua's "soon" return which pre-dates the councils.
(I could be wrong on the source of this quote) I believe Martin Luther said:
Where the Father's depart from Scripture, I depart from the Fathers.
Being this was Martin's quote, the Father of the Reformation certainly performed an act more egregious than the believer who doesn't agree with every tenet of the Catechisms and Creeds.
If Luther did not say this, then his actions certainly did hold the Church of 1400 years in contempt as he was a lone voice questioning the authority and decisions of the establishment. No less insulting as the Protestant Church is towards the Preterist.