Vial was initially stored in refrigerator on 10-MAY-2023 and administered to patient on 10-Jun-2023 through 24-Jun-2023; No adverse event; 9 adult patients (Not pregnant) received expired Bivalent Blue Cap booster doses of Moderna COVID-19 vaccine on 10JUN2023 through 24JUN2023/Dose administered after 30-day Use By Date; This spontaneous case was reported by a pharmacist and describes the occurrence of EXPIRED PRODUCT ADMINISTERED (9 adult patients (Not pregnant) received expired Bivalent Blue Cap booster doses of Moderna COVID-19 vaccine on 10JUN2023 through 24JUN2023/Dose administered after 30-day Use By Date), PRODUCT STORAGE ERROR (Vial was initially stored in refrigerator on 10-MAY-2023 and administered to patient on 10-Jun-2023 through 24-Jun-2023) and NO ADVERSE EVENT (No adverse event) in an adult patient of an unknown gender who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (batch no. AS7642B) for COVID-19 prophylaxis.     No Medical History information was reported.  On 11-Jun-2023, the patient received dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) 1 dosage form. On 11-Jun-2023, the patient experienced EXPIRED PRODUCT ADMINISTERED (9 adult patients (Not pregnant) received expired Bivalent Blue Cap booster doses of Moderna COVID-19 vaccine on 10JUN2023 through 24JUN2023/Dose administered after 30-day Use By Date). On an unknown date, the patient experienced PRODUCT STORAGE ERROR (Vial was initially stored in refrigerator on 10-MAY-2023 and administered to patient on 10-Jun-2023 through 24-Jun-2023) and NO ADVERSE EVENT (No adverse event). At the time of the report, EXPIRED PRODUCT ADMINISTERED (9 adult patients (Not pregnant) received expired Bivalent Blue Cap booster doses of Moderna COVID-19 vaccine on 10JUN2023 through 24JUN2023/Dose administered after 30-day Use By Date), PRODUCT STORAGE ERROR (Vial was initially stored in refrigerator on 10-MAY-2023 and administered to patient on 10-Jun-2023 through 24-Jun-2023) and NO ADVERSE EVENT (No adverse event) outcome was unknown.     For mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (Unknown), the reporter considered NO ADVERSE EVENT (No adverse event) to be not related. No further causality assessments were provided for EXPIRED PRODUCT ADMINISTERED (9 adult patients (Not pregnant) received expired Bivalent Blue Cap booster doses of Moderna COVID-19 vaccine on 10JUN2023 through 24JUN2023/Dose administered after 30-day Use By Date) and PRODUCT STORAGE ERROR (Vial was initially stored in refrigerator on 10-MAY-2023 and administered to patient on 10-Jun-2023 through 24-Jun-2023).    Concomitant product use was not provided by the reporter.  Pharmacist was calling to report that 9 adult patients (Not pregnant) received expired Bivalent Blue Cap booster doses of Moderna COVID-19 vaccine on 10-Jun-2023 through 24-Jun-2023. Dose administered after 30-day Use By.  In an open Carton of Vial size 2.5 ml.  Date the vial was initially stored in the refrigerator: 10-May-2023.  Dates of administration of vaccine were 1 Patient on 10-Jun-2023, 3 Patients 11-Jun-2023, 2 Patients on 12-Jun-2023, 1 patient on 15-Jun-2023, 2 Patients on 24-Jun-2023.  The vial did not undergo any temperature excursions.  Treatment information was not provided.  This case contains information for the 3rd patient out of 9 patients described by the reporter.   This case was linked to US-MODERNATX, INC.-MOD-2023-732805 (E2B Linked Report).; Sender's Comments:  US-MODERNATX, INC.-MOD-2023-732805:Same report