In May 2015, Mihaela Mois brought this action in the State Court of Gwinnett County against Skyjack, Inc., NES Equipment Services Corporation, O.E.M. Controls, Inc., Wieland Electric, Inc., and Bryan Stone, asserting claims for wrongful death as the surviving spouse of Vasile Mois, and on behalf his children and, as the representative of his estate, for personal injuries. In August 2016, Mois's counsel filed in the Probate Court of Gwinnett County a petition for letters of administration, requesting that "Jo-Ann Taylor, Legacy Trust Advisors, a representative for Fidelity Bank," be appointed administrator of the decedent's estate. In the petition, the attorney stated that, since the filing of the complaint, Mois had "disappear[ed]" and the attorney had been unable to locate or otherwise communicate with her. The attorney requested that Taylor be appointed because

"no other alternative nominee was available to him to protect the financial interests of Mois, her minor children, and the decedent's intestate estate." The probate court appointed Taylor to be the administrator of the estate.

Mois's counsel 1 then moved in the state court action that Taylor be substituted as the *241 party plaintiff on the basis that Mois had been "deemed incompetent to serve as the representative of the [decedent's] [e]state" and had been removed as the representative of the estate. Counsel argued that, as the current administrator of the estate, Taylor was the only proper representative to continue to prosecute the estate's claims and the wrongful death claim. The state court allowed the substitution over the defendants' opposition. We granted the application for interlocutory appeal filed by the defendants below. The appellants contend that the state court erred in substituting a different plaintiff, arguing that the substitution was not authorized by either of the Code sections cited by Mois. For the reasons explained below, we affirm in part and reverse in part.

1. The appellants contend that the state court erred in substituting a different plaintiff on the grounds of Mois's alleged mental incompetency.

OCGA § 9-11-25 (b) provides that if a party becomes incompetent, the trial court may allow the action to be continued by or against her representative. 2 Thus, it appears that if Mois was incompetent the state court could have allowed the action to be continued by her representative. See Blackmon v. Tenet Healthsystem Spalding, 284 Ga. 369 , 371, 667 S.E.2d 348 (2008) (Georgia's appellate courts have allowed persons acting in a representative capacity to bring a wrongful death claim on behalf of a person entitled to bring such a claim.). The record in this case does not show that Mois had been adjudicated to be incompetent to manage her own legal affairs and appointed a guardian or conservator. See OCGA § 29-5-1 (appointment of conservator for an adult who lacks sufficient capacity to make or communicate significant responsible decisions concerning the management of his or her property); Gulf Life Ins. Co. v. Wilson, 123 Ga. App. 631 , 632 (2), 181 S.E.2d 914 (1971) (Mental impairment is never presumed, but must be proved.); see also McCarley v. McCarley, 246 Ga. App. 171 , 539 S.E.2d 871 (2000) ("[S]ubstitution of parties does not occur by operation of law but must be effected under OCGA § 9-11-25, which requires notice to the parties and a hearing" on contested factual issues.) (footnote omitted). 3 Further, even if Mois has become incompetent during the pendency of the action, the record does not show that Taylor is Mois's representative with the authority to continue prosecuting pending claims on her behalf, notwithstanding that Taylor is the administrator of the decedent's estate. Based on the record before the state court when it ruled on the motion to substitute Taylor in place of Mois, we conclude that OCGA § 9-11-25 (b) did not authorize the substitution.

2. The appellants contend that the trial court's order violated OCGA § 51-4-5 (a) by substituting the decedent's administrator as the plaintiff for a wrongful death claim despite there being a surviving spouse and children entitled to bring the claim. OCGA § 51-4-5 (a) provides that "[w]hen there is no person entitled to bring an action for the wrongful death of a decedent [under OCGA §§ 51-4-2 or 51-4-4 ], the administrator or executor of the decedent may bring an action *242 for ... the next of kin." Under OCGA § 51-4-2 (a)"[t]he surviving spouse or, if there is no surviving spouse, a child or children, either minor or sui juris, may recover for the homicide of the spouse or parent the full value of the life of the decedent." See Tolbert v. Maner , 271 Ga. 207 , 208 (2), 518 S.E.2d 423 (1999) (Under OCGA § 51-4-2 (a), a wrongful death claim may be brought by only two categories of plaintiffs: the decedent's surviving spouse and, if there is no surviving spouse, the decedent's children.). 4 Here, it is undisputed that Mois is the decedent's surviving spouse, so OCGA § 51-4-2 (a)provides no authority for the substitution of Taylor as the administrator of the estate to prosecute Mois's wrongful death claim. 5 That being said, we note that the pending action consists of more than the wrongful death claim-Mois asserted claims as the representative of the estate for products liability, negligence, and failure to warn. As the administrator, Taylor is entitled to prosecute the claims of the estate, and therefore is properly substituted for Mois as a party plaintiff in that capacity. But the addition of Taylor as a party plaintiff in that capacity is no reason to remove Mois as the plaintiff as to claims that belong to her.

Based on the foregoing, the state court's order is reversed in part, to the extent it removed Mois as a party plaintiff in her personal capacity for the wrongful death claim.

Judgment affirmed in part and reversed in part.

Bethel, J., and Senior Appellate Judge Herbert E. Phipps concur.