Abdominal pain that was so severe; Blood in his urine; high pulse and then plunging down to low pulse; Very high blood pressure; This spontaneous case was reported by a consumer and describes the occurrence of ABDOMINAL PAIN (Abdominal pain that was so severe), HAEMATURIA (Blood in his urine), HEART RATE IRREGULAR (high pulse and then plunging down to low pulse) and HYPERTENSION (Very high blood pressure) in an 80-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 017B21A and 013A21A) for COVID-19 vaccination.     No Medical History information was reported.   On 04-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 01-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. In April 2021, the patient experienced ABDOMINAL PAIN (Abdominal pain that was so severe), HAEMATURIA (Blood in his urine), HEART RATE IRREGULAR (high pulse and then plunging down to low pulse) and HYPERTENSION (Very high blood pressure). At the time of the report, ABDOMINAL PAIN (Abdominal pain that was so severe), HAEMATURIA (Blood in his urine), HEART RATE IRREGULAR (high pulse and then plunging down to low pulse) and HYPERTENSION (Very high blood pressure) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In April 2021, Computerised tomogram: no sign of kidney stones or anything No sign of kidney stones or anything. In April 2021, Heart rate: high pulse then plunging down to low pulse (abnormal) High pulse then plunging down to low pulse.         Concomitant medication reported included unspecified high blood pressure medicine. The patient had no allergies. The patient had no acute and chronic illnesses at the time of vaccination. The patient had no other vaccine within 1 month prior to Moderna COVID-19 vaccine. The patient had no COVID positive test or diagnosis.  Almost 2 weeks after the second dose, the patient experienced very high blood pressure, high pulse and then plunging down to low pulse, abdominal pain that was so severe he had to go to the ER where they did a CAT scan, there was no sign of kidney stones or anything even though he had blood in his urine.  Company comment.  This spontaneous case concerns an 80  year  old, male patient with no medical history reported, who experienced the unexpected, non  serious AESI of heart rate irregular, among other non  serious events. The events occurred approximately two weeks after the administration of the second dose of mRNA-1273 vaccine. The report stated that the patient experienced high blood pressure, high pulse that then plunged down to low pulse, abdominal pain, and haematuria. He mentioned that the abdominal pain led to a consult to the emergency department, where a CT scan was done, without pathological findings. No other information is available regarding clinical course, or treatment performed. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.   This case was linked to MOD-2022-530116, MOD-2022-530162 (Patient Link).; Sender's Comments: This spontaneous case concerns an 80  year  old, male patient with no medical history reported, who experienced the unexpected, non  serious AESI of heart rate irregular, among other non  serious events. The events occurred approximately two weeks after the administration of the second dose of mRNA-1273 vaccine. The report stated that the patient experienced high blood pressure, high pulse that then plunged down to low pulse, abdominal pain, and haematuria. He mentioned that the abdominal pain led to a consult to the emergency department, where a CT scan was done, without pathological findings. No other information is available regarding clinical course, or treatment performed. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.