Vial was expired on 13-May-2022, stored in refrigerator on 21-Jan-2022 and administered on 07-Jun-2022; No adverse event; Dose administered after expiration date; This spontaneous case was reported by a nurse and describes the occurrence of EXPIRED PRODUCT ADMINISTERED (Dose administered after expiration date), PRODUCT STORAGE ERROR (Vial was expired on 13-May-2022, stored in refrigerator on 21-Jan-2022 and administered on 07-Jun-2022) and NO ADVERSE EVENT (No adverse event) in a 79-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 003K21-2A, 001J21-21, 022C21A and 037A21B) for COVID-19 prophylaxis.     Patient had never been diagnosed with or tested positive for COVID-19. It was unknown if patient had acute illnesses at the time of vaccination and up to one month before.  Concurrent medical conditions included Blood pressure high (HBP) and Diabetes. Concomitant products included AMLODIPINE BESILATE (NORVASC), DILTIAZEM (CARDIZEM [DILTIAZEM]), LOVASTATIN, METFORMIN and ALENDRONATE SODIUM (FOSAMAX) for an unknown indication.   On 09-Apr-2021 at 11:13 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) .5 milliliter. On 13-May-2021 at 10:53 AM, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to .5 milliliter. On 19-Jan-2022, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to .25 milliliter. On 07-Jun-2022 at 3:05 PM, received fourth dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to .25 milliliter. On 07-Jun-2022 at 3:05 PM,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced EXPIRED PRODUCT ADMINISTERED (Dose administered after expiration date). On an unknown date, the patient experienced PRODUCT STORAGE ERROR (Vial was expired on 13-May-2022, stored in refrigerator on 21-Jan-2022 and administered on 07-Jun-2022) and NO ADVERSE EVENT (No adverse event). At the time of the report, EXPIRED PRODUCT ADMINISTERED (Dose administered after expiration date), PRODUCT STORAGE ERROR (Vial was expired on 13-May-2022, stored in refrigerator on 21-Jan-2022 and administered on 07-Jun-2022) and NO ADVERSE EVENT (No adverse event) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter considered NO ADVERSE EVENT (No adverse event) to be not related and EXPIRED PRODUCT ADMINISTERED (Dose administered after expiration date) to have an unknown relationship. No further causality assessment was provided for PRODUCT STORAGE ERROR (Vial was expired on 13-May-2022, stored in refrigerator on 21-Jan-2022 and administered on 07-Jun-2022).    No treatment medication was reported.  Expired vaccine was administered to the patient, the health care professional thought that Moderna had an extension like other company products and assumed vaccines would expire on the 13-Jul-2022 but it was expired on the 13-May-2022.  The used vials were placed refrigerator on the same day of administration (07-Jun-2022) and vials did not undergo any temperature excursion.  Event did not cause the patient to seek medical care.  It was unknown if there were any other potential causes or patient experience similar events in the past.