Any judgment under this subsection establishing a decedent to be the father of a child shall be entered nunc pro tunc to the day preceding the date of death of the father.
The burden of proof in any motion to set aside an order of paternity shall be on the moving party. Upon proper motion alleging fraud, duress, mutual mistake, or excusable neglect, the court shall order the child's mother, the child whose parentage is at issue, and the putative father to submit to genetic paternity testing pursuant to G.S. 8-50.1(b1). If the court determines, as a result of genetic testing, the putative father is not the biological father of the child and the order of paternity was entered as a result of fraud, duress, mutual mistake, or excusable neglect, the court may set aside the order of paternity. Nothing in this subsection shall be construed to affect the presumption of legitimacy where a child is born to a mother and the putative father during the course of a marriage.
N.C. Gen. Stat. § 49-14