New Jersey Statutes Title 2A. Administration of Civil and Criminal Justice 2A § 44-44

Any person legally liable or against whom a claim is asserted, or his representative, for damages for injuries sustained shall, upon written request, be furnished by any physician or dentist asserting a lien under this article with a statement of the injuries sustained by the injured person and an itemized statement of the charges and services rendered to date. Failure of a physician or dentist to provide such statement shall constitute a valid defense in an action brought to enforce a lien under this article.