Nonsustained ventricular tachycardia; Chest discomfort; Rash; S.O.B; Palpitations; This spontaneous case was reported by a consumer and describes the occurrence of VENTRICULAR TACHYCARDIA (Nonsustained ventricular tachycardia), DYSPNOEA (S.O.B), PALPITATIONS (Palpitations), CHEST DISCOMFORT (Chest discomfort) and RASH (Rash) in a 43-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 030C20A and 011J20A) for COVID-19 vaccination.     Concurrent medical conditions included COPD (Frequent exacerbation), Hypertension, Diabetes, Shellfish allergy and Allergy to antibiotic (Cipro allergy). Concomitant products included METOPROLOL for Arrhythmia, SALBUTAMOL SULFATE (ALBUTEROL [SALBUTAMOL SULFATE]) for COPD, ATORVASTATIN for Hyperchloremia, HYDROCHLOROTHIAZIDE, LISINOPRIL (LISINOPRIL HCTZ) and AMLODIPINE for Hypertension.   On 05-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 04-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 25-Feb-2021, the patient experienced DYSPNOEA (S.O.B) (seriousness criterion hospitalization), PALPITATIONS (Palpitations) (seriousness criterion hospitalization) and RASH (Rash) (seriousness criterion hospitalization). On 27-Mar-2021 at 12:06 PM, the patient experienced CHEST DISCOMFORT (Chest discomfort) (seriousness criterion hospitalization). On 26-May-2021, the patient experienced VENTRICULAR TACHYCARDIA (Nonsustained ventricular tachycardia) (seriousness criteria hospitalization and medically significant). The patient was hospitalized on 25-Feb-2021 due to DYSPNOEA and PALPITATIONS, then on 27-Mar-2021 due to CHEST DISCOMFORT, then on 25-May-2021 due to RASH, and then on 26-May-2021 due to VENTRICULAR TACHYCARDIA. At the time of the report, VENTRICULAR TACHYCARDIA (Nonsustained ventricular tachycardia), DYSPNOEA (S.O.B), PALPITATIONS (Palpitations), CHEST DISCOMFORT (Chest discomfort) and RASH (Rash) had not resolved.            Patient reported that he visited cardiologist, primary care, emergency room multiple more times. He experienced unknown rash from beginning and continues. One of the emergency room visit on 27-May-2021 and went for palpitation, shortness breath and non sustained ventricular tachycardia was present. He admitted to hospital. He experienced rash on arm, then face, torso and now mid section and thighs have rah. Experiencing palpitation/ arrhythmias daily as well shortness of breath.  Treatment information was not provided.  Based on the current available information and temporal association between the use of mRNA-1273 and the onset of the events, a causal relationship cannot be excluded. However, the cardiac related disorders are confounded by the patient's underlying cardiac conditions) hypertension, arrhythmia, hypercholesterolemia) and diabetes; Sender's Comments: Based on the current available information and temporal association between the use of mRNA-1273 and the onset of the events, a causal relationship cannot be excluded. However, the cardiac related disorders are confounded by the patient's underlying cardiac conditions) hypertension, arrhythmia, hypercholesterolemia) and diabetes