Their doctor did an x-ray and said that it's due to arthritis in the shoulder; It hurts to do anything with the arm like twisting it or cutting something with it; can hardly use my arm and it hurts very very bad; The right arm has been hurting at the injection site; This spontaneous case was reported by a consumer and describes the occurrence of ARTHRITIS (Their doctor did an x-ray and said that it's due to arthritis in the shoulder), PAIN (It hurts to do anything with the arm like twisting it or cutting something with it), PAIN IN EXTREMITY (can hardly use my arm and it hurts very very bad) and VACCINATION SITE PAIN (The right arm has been hurting at the injection site) in a 69-year-old patient of an unknown gender who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 023M20A) for COVID-19 vaccination.     No Medical History information was reported.   On 19-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 19-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient experienced ARTHRITIS (Their doctor did an x-ray and said that it's due to arthritis in the shoulder), PAIN (It hurts to do anything with the arm like twisting it or cutting something with it), PAIN IN EXTREMITY (can hardly use my arm and it hurts very very bad) and VACCINATION SITE PAIN (The right arm has been hurting at the injection site). At the time of the report, ARTHRITIS (Their doctor did an x-ray and said that it's due to arthritis in the shoulder), PAIN (It hurts to do anything with the arm like twisting it or cutting something with it), PAIN IN EXTREMITY (can hardly use my arm and it hurts very very bad) and VACCINATION SITE PAIN (The right arm has been hurting at the injection site) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2021, X-ray: abnormal (abnormal) arthritis in the shoulder.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Batch numbers for the 2nd dose is given as 046H21A or 046A21A No concomitant medications were mentioned. Treatment details reported patient using a heating pad & Icy Hot on it but refused a cortisone shot. Patient reported that doctor did an x-ray and said that it's due to arthritis in the shoulder. Company Comment includes This is a spontaneous case concerning a 69-year-old patient of an unknown gender with no relevant medical history reported, who experienced AESI, non-serious, unexpected event of Arthritis. The event occurred on an unknown date after the second dose of mRNA-1273. The rechallenge was not applicable as no additional dosing is expected. The benefit-risk relationship of mRNA-1273 is not affected by this report.; Sender's Comments: This is a spontaneous case concerning a 69-year-old patient of an unknown gender with no relevant medical history reported, who experienced AESI, non-serious, unexpected event of Arthritis. The event occurred on an unknown date after the second dose of mRNA-1273. The rechallenge was not applicable as no additional dosing is expected. The benefit-risk relationship of mRNA-1273 is not affected by this report.