N.C. Gen. Stat. § 90-21.55

(1) Either the insured or enrollee or the personal representative of the insured or enrollee or the managed care entity may use an external review decision made in accordance with G.S. 58-50-75 through G.S. 58-50-95, or made in accordance with any successor external review process, as evidence in any cause of action which includes an action brought under this Part, provided that an adequate foundation is laid for the introduction of the external review decision into evidence and the testimony is subject to cross-examination.

(2) Any information, documents, or other records or materials considered by the Independent Review Organization licensed under Part 4 of Article 50 of Chapter 58 of the General Statutes, or the successor review process, in conducting its review shall be admissible in any action commenced under this Article in accordance with Chapter 8 of the General Statutes and the North Carolina Rules of Evidence.