Question juridique clé
Whether the appeal against the order for a multidisciplinary medical examination is admissible
Solution extraite
The appeal is inadmissible because the challenged decision is an interim order and no immediately reviewable ground is shown.
Motifs extraits
Objections to the necessity, proportionality, or burden of the expertise are substantive arguments that cannot be reviewed at this stage; only a recusal issue under Art. 92 BGG could justify immediate federal review.