N.J. Stat. § 2A:14-2.1
Where a parent or other person has a claim for damages suffered by him because of an injury to a minor child caused by the wrongful act, neglect or default of any person within this State, an action at law upon such claim may be commenced by the said parent or other person within the same period of time as provided by law in the case of the said minor child so injured, provided that, if an action is commenced by or on behalf of the said minor child, the said claim of the parent or other person shall be asserted and maintained in such action brought on behalf of the injured minor child either as a plaintiff or third party plaintiff and if not so asserted shall be barred by the judgment in the action brought on behalf of said injured minor child.
N.J.S. § 2A:14-2.1