Diagnosed with Restrictive Lung Disease after first dose; Diagnosed with Hypertension after first dose; Diagnosed with Pulmonary Embolism/Pulmonary Embolism after first dose/Cardiologist said the chest hurts because of the pulmonary embolism; This spontaneous case was reported by a patient and describes the occurrence of PULMONARY EMBOLISM (Diagnosed with Pulmonary Embolism/Pulmonary Embolism after first dose/Cardiologist said the chest hurts because of the pulmonary embolism) in a 35-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 023CRA) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Patient was totally Healthy prior to vaccination and has never had COVID Disease. Patient had a total check up for entering school in 2021 and passed all medical tests.     On 10-May-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 14-May-2021,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced PULMONARY EMBOLISM (Diagnosed with Pulmonary Embolism/Pulmonary Embolism after first dose/Cardiologist said the chest hurts because of the pulmonary embolism) (seriousness criterion medically significant). In 2022, the patient experienced RESTRICTIVE PULMONARY DISEASE (Diagnosed with Restrictive Lung Disease after first dose) and HYPERTENSION (Diagnosed with Hypertension after first dose). At the time of the report, PULMONARY EMBOLISM (Diagnosed with Pulmonary Embolism/Pulmonary Embolism after first dose/Cardiologist said the chest hurts because of the pulmonary embolism) had not resolved and RESTRICTIVE PULMONARY DISEASE (Diagnosed with Restrictive Lung Disease after first dose) and HYPERTENSION (Diagnosed with Hypertension after first dose) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2022, Electrocardiogram: Abnormal. On an unknown date, Heart rate: Rapid heart beat.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       The patient received 1 dose of Moderna COVID-19 vaccine on 10-May-2021, four days later he had seizures, was taken to Hospital and was diagnosed with Pulmonary Embolism. He had been on blood thinner anti-coagulant since then. He was diagnosed with Angina and had constant chest pain. His EKG was abnormal but the doctor ruled out Myocarditis and Pericarditis. After vaccination he was diagnosed with Restrictive Lung Disease and Hypertension. He visited a cardiologist, declined providing the cardiologist's name. The cardiologist stated that the chest hurts because of the pulmonary embolism.  The patient enquired, Why was he having constant chest pain and rapid heart beat. If he get discharged because of this, What was Moderna going to do for him. He might need financial help. Treatment included unspecified blood thinner anti-coagulant.  Company Comment: This is a Spontaneous case concerning a 35-year-old male patient, with no medical history, who experienced the unexpected and serious (due to medically significant) events of Pulmonary embolism (AESI) which occurred 4 days after the first dose of mRNA-1273 vaccine. Patient experienced seizures and was taken to the hospital, where pulmonary embolism was diagnosed. He has been on blood thinner anti-coagulant since then. He was also diagnosed with angina, restrictive lung disease and hypertension, and has constant chest pain and rapid heart beat. ECG was performed with abnormal result, but myocarditis and pericarditis were ruled out by the doctor. Patient visited a cardiologist, who stated that chest pain was due to pulmonary embolism. He had a total check-up prior to vaccination in 2021 and he passed all medical tests. No information disclosed about other diagnostic tests performed or other treatments received. The outcome was reported as not resolved. The benefit-risk relationship of mRNA-1273 vaccine, is not affected by this report.; Sender's Comments: This is a Spontaneous case concerning a 35-year-old male patient, with no medical history, who experienced the unexpected and serious (due to medically significant) events of Pulmonary embolism (AESI) which occurred 4 days after the first dose of mRNA-1273 vaccine. Patient experienced seizures and was taken to the hospital, where pulmonary embolism was diagnosed. He has been on blood thinner anti-coagulant since then. He was also diagnosed with angina, restrictive lung disease and hypertension, and has constant chest pain and rapid heart beat. ECG was performed with abnormal result, but myocarditis and pericarditis were ruled out by the doctor. Patient visited a cardiologist, who stated that chest pain was due to pulmonary embolism. He had a total check-up prior to vaccination in 2021 and he passed all medical tests. No information disclosed about other diagnostic tests performed or other treatments received. The outcome was reported as not resolved. The benefit-risk relationship of mRNA-1273 vaccine, is not affected by this report.