While both CBT and GET are not often discussed directly in biopsychosocial terms, its alluded to frequently.
GET is of course the bio- part;
CBT (under a presumption of a psychosomatic illness) is the -psycho- part,
and denying patients support and benefits that will enable their illness is the -social part.
Source: http://forums.phoenixrising.me/entry.php?1347-The-Rise-and-Fall-of-the-Biopsychosocial-Model