I don't have access to the EMR right now for the little blip he developed. But it has to do with discussing the dc, rationale for continued rehab/hospitalization, setting/adjusting dc date, team discussion, etc. We don't let insurance dictate LOS, though it is certainly a factor we consider.
We don't use the decision to hospitalize to justify a 99233 daily (though the hospitalists here do). Just weekly for team conference, since that's really the only time we talk about it thoroughly. You're correct it's not listed in the complexity chart--PM&R got thoroughly hosed by the CPT changes since the majority of any 99233s we billed were based on time.
How do you use a level 3 on admission? Shouldn't that be a 99223? Or do you mean the day after admission? We usually bill a 99233 the day after admission (since we're following up on labs, consulting internists, determining if the pt is stable enough to remain on rehab, etc., and for team conference, and that's about it.).