A party whose parentage of a child has been previously determined by or under law may not plead nonparentage as a defense to a proceeding under this chapter.
Tex. Fam. Code § 159.315
A party whose parentage of a child has been previously determined by or under law may not plead nonparentage as a defense to a proceeding under this chapter.
Tex. Fam. Code § 159.315