Mo. Rev. Stat. § 210.824 (2026)

  210.824.  Artificial insemination, consent required, duties of physician, effect of physician's failure to comply with law — inspection of records permitted, when. — 1.  If, under the supervision of a licensed physician and with the consent of her husband, a wife is inseminated artificially with semen donated by a man not her husband, the husband is treated in law as if he were the natural father of a child thereby conceived.  The husband's consent must be in writing and signed by him and his wife.  The physician shall certify their signatures and the date of the insemination, and file the husband's consent with the bureau, where it shall be kept confidential and in a sealed file.  The physician's failure to comply with this section shall not affect the father and child relationship.  All papers and records pertaining to the insemination, whether part of the permanent record of a court or of a file held by the supervising physician or elsewhere, are subject to inspection only upon an order of the court for good cause shown.

  2.  The donor of semen provided to a licensed physician for use in artificial insemination of a married woman other than the donor's wife is treated in law as if he were not the natural father of a child thereby conceived.