  We study possible multiquark contributions to the charm baryon spectrum by
considering higher order Fock space components. For this purpose we perform two
different calculations. In a first approach we do a coupled-channel calculation
of the $ND$ system looking for molecular states. In a second step we allow for
the coupling to a heavy baryon--light meson two-hadron system looking for
compact exotic five--quark structures. Both calculations have been done within
the framework of a chiral constituent quark model. The model, tuned in the
description of the baryon and meson spectra as well as the $NN$ interaction,
provides parameter-free predictions for charm $+1$ molecular or compact
two-hadron systems. Unlike the $N \bar D$ system, no sharp quark-Pauli effects
are found. However, the existence of different two-hadron thresholds for the
five-quark system will make the coupled-channel dynamics relevant. Only a few
channels are candidates to lodge molecular or compact hadrons with a five-quark
structure, being specially relevant the $(T)J^P=(0)1/2^-$ and $(T)J^P=(2)5/2^-$
channels. The identification of molecular states and/or compact hadrons with
multiquark components either with or without exotic quantum numbers is a
challenge of different collaborations like $\bar {\rm P}$ANDA, LHCb, ExHIC or
J-PARC.
