Your actual Hibernate JPA query would be quite easy, since all the joins are automatic in JPA.
But you didn't actually define a @ManyToMany relationship on anything there.
I appreciate your attempting to keep the code samples short, but if you could display more of the entity class definitions of GNRL_ORG_CHARGE_CODE, the join table GNRL_CHARGE_CODE_COND and the BILLING_CONDITION class, it would help a lot.
The things I need to see are the class definition line and its annotations, the joining annotations and the class member definitions for those joining annotations.
Some people, when well-known sources tell them that fire will burn them, don't put their hands in the fire.
Some people, being skeptical, will put their hands in the fire, get burned, and learn not to put their hands in the fire.
And some people, believing that they know better than well-known sources, will claim it's a lie, put their hands in the fire, and continue to scream it's a lie even as their hands burn down to charred stumps.