upper back pain; feels like muscles are atrophying; Sever left shoulder pain; arm pain/It is hard to reach for something, he has almost lost use of both arms/Severe left arm pain; the pain went down his arm, up across the shoulder, upper back  to his other arm to the elbow; the site he got the shot (on his right arm) started hurting,; Minor discomfort at shot site; This spontaneous case was reported by a consumer and describes the occurrence of PAIN IN EXTREMITY (arm pain/It is hard to reach for something, he has almost lost use of both arms/Severe left arm pain) in a 70-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 012M20A and 011620A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Pancreatitis (chronic) since 06-Dec-2006, Diabetes since 06-Dec-2008, Penicillin allergy and Fruit allergy (mangos). Concomitant products included VITAMIN C [ASCORBIC ACID], VITAMIN D3, ZINC, PROBIOTICS NOS, ATORVASTATIN CALCIUM, DULOXETINE HYDROCHLORIDE (CYMBALTA), DULOXETINE HCL, METFORMIN HCL, NATEGLINIDE, OMEPRAZOLE, TRAZODONE HCL and SILDENAFIL CITRATE for an unknown indication.   On 04-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 01-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 01-Feb-2021, the patient experienced VACCINATION SITE DISCOMFORT (Minor discomfort at shot site). On 11-Feb-2021, the patient experienced PAIN IN EXTREMITY (arm pain/It is hard to reach for something, he has almost lost use of both arms/Severe left arm pain) (seriousness criterion disability), MYALGIA (the pain went down his arm, up across the shoulder, upper back  to his other arm to the elbow) and VACCINATION SITE PAIN (the site he got the shot (on his right arm) started hurting,). On 12-Feb-2021, the patient experienced ARTHRALGIA (Sever left shoulder pain). On an unknown date, the patient experienced BACK PAIN (upper back pain) and MUSCLE ATROPHY (feels like muscles are atrophying). The patient was treated with PREDNISONE ongoing since an unknown date at a dose of 5 mg and GABAPENTIN ongoing since an unknown date at a dose of 300 mg twice a day. On 02-Feb-2021, VACCINATION SITE DISCOMFORT (Minor discomfort at shot site) had resolved. At the time of the report, PAIN IN EXTREMITY (arm pain/It is hard to reach for something, he has almost lost use of both arms/Severe left arm pain) and ARTHRALGIA (Sever left shoulder pain) had not resolved, BACK PAIN (upper back pain), MUSCLE ATROPHY (feels like muscles are atrophying) and VACCINATION SITE PAIN (the site he got the shot (on his right arm) started hurting,) outcome was unknown and MYALGIA (the pain went down his arm, up across the shoulder, upper back  to his other arm to the elbow) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, Blood test: inconclusive (Inconclusive) Inconclusive.         Other concomitant medications included Multivit mega men 50 plus (1 daily) and green superfood (1 capsule daily).  The action taken with mRNA-1273 in response to the event was not applicable.  Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.   Most recent FOLLOW-UP information incorporated above includes: On 18-Jun-2021: Follow-up information received on 18-jun-2021 included, medical history, concomitant medications, additional event, event outcome; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.