scanned the code on the box (carton) which directed me towards the Site for Moderna COVID-19 Vaccine Bivalent. This lead me to believe that the vaccine was bivalent; No adverse event; Vaccines were given as follows from monovalent vaccine vials. These should have been bivalent vaccines with authorization changes.; This spontaneous case was reported by an other health care professional and describes the occurrence of WRONG PRODUCT ADMINISTERED (Vaccines were given as follows from monovalent vaccine vials. These should have been bivalent vaccines with authorization changes.), PRODUCT LABEL CONFUSION (scanned the code on the box (carton) which directed me towards the Site for Moderna COVID-19 Vaccine Bivalent. This lead me to believe that the vaccine was bivalent) and NO ADVERSE EVENT (No adverse event) in a child patient of an unknown gender who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. AS1903B) for COVID-19 prophylaxis. No Medical History information was reported. On 23-May-2023, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 23-May-2023, the patient experienced WRONG PRODUCT ADMINISTERED (Vaccines were given as follows from monovalent vaccine vials. These should have been bivalent vaccines with authorization changes.). On an unknown date, the patient experienced PRODUCT LABEL CONFUSION (scanned the code on the box (carton) which directed me towards the Site for Moderna COVID-19 Vaccine Bivalent. This lead me to believe that the vaccine was bivalent) and NO ADVERSE EVENT (No adverse event). At the time of the report, WRONG PRODUCT ADMINISTERED (Vaccines were given as follows from monovalent vaccine vials. These should have been bivalent vaccines with authorization changes.), PRODUCT LABEL CONFUSION (scanned the code on the box (carton) which directed me towards the Site for Moderna COVID-19 Vaccine Bivalent. This lead me to believe that the vaccine was bivalent) and NO ADVERSE EVENT (No adverse event) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter considered NO ADVERSE EVENT (No adverse event) to be not related. No further causality assessments were provided for WRONG PRODUCT ADMINISTERED (Vaccines were given as follows from monovalent vaccine vials. These should have been bivalent vaccines with authorization changes.) and PRODUCT LABEL CONFUSION (scanned the code on the box (carton) which directed me towards the Site for Moderna COVID-19 Vaccine Bivalent. This lead me to believe that the vaccine was bivalent).    Concomitant medication details not reported by the reporter. Patient scanned the code on the box (carton) which directed  towards the Site for Moderna COVID-19 Vaccine Bivalent.  This lead  to believe that the vaccine was bivalent and 4 doses were administered. The NDC number from the carton was (not bivalent per fact sheet). Vaccines were given as follows from monovalent vaccine vials.  These should had been bivalent vaccines with authorization changes. On 02 May 2023 2 doses given, lot number AS1417B from 1 vial, on 23 May 2023 2 doses given, lot number AS1903B from 1 vial. Treatment details was not reported by the reporter. This case contains information about 3rd patient out of 4.   This case was linked to US-MODERNATX, INC.-MOD-2023-726308 (E2B Linked Report).; Sender's Comments:  US-MODERNATX, INC.-MOD-2023-726308:Patient 1