Possible Kidney Infection; Possible Pneumonia; Passed away; Low Iron Levels; Lack of appetite continued after first shot; Nauseous; Felt Cold (Chills); This spontaneous case was reported by an other caregiver and describes the occurrence of KIDNEY INFECTION (Possible Kidney Infection), PNEUMONIA (Possible Pneumonia) and DEATH (Passed away) in a 90-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 022N20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Aspiration pneumonia (Had Aspiration Pneumonia prior to vaccination and was hospitalized.), Stent placement (Received a heart stent 7 years ago.), Heart valve replacement on 12-Jan-2021 and Intubation. Concomitant products included AMIODARONE and HYDROCHLOROTHIAZIDE (DIURETIC [HYDROCHLOROTHIAZIDE]) for an unknown indication.    On 04-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 04-Mar-2021, the patient experienced CHILLS (Felt Cold (Chills)). On 14-Mar-2021, the patient experienced KIDNEY INFECTION (Possible Kidney Infection) (seriousness criteria death, hospitalization, medically significant and life threatening), PNEUMONIA (Possible Pneumonia) (seriousness criteria death, hospitalization, medically significant and life threatening), DECREASED APPETITE (Lack of appetite continued after first shot), NAUSEA (Nauseous) and BLOOD IRON DECREASED (Low Iron Levels). On 23-Mar-2021, DECREASED APPETITE (Lack of appetite continued after first shot) and BLOOD IRON DECREASED (Low Iron Levels) outcome was unknown and CHILLS (Felt Cold (Chills)) and NAUSEA (Nauseous) had resolved. The patient died on 23-Mar-2021. It is unknown if an autopsy was performed.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 14-Mar-2021, Blood iron: (Low) Had very low Iron levels.. On an unknown date, Polymerase chain reaction: (Negative) Had several Negative PCR tests every time he was hospitalized.   The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.   Reporter states that her Husband passed away on 23MAR2021 but his death was not vaccine related. Had damaged his esophagus while intubating him. He was not doing great but he was functional prior to vaccination.  On 14MAR2021 he was hospitalized. Doctors did not know what was wrong with him. His doctor stated that he had Kidney infection or pneumonia but all tests were normal. Reporter stated that the Doctors do not know what was happening to him but it was not vaccine related.  Concomitant medications included Defibrillator along with above mentioned medications.; Sender's Comments: This fatal case concerns a 90-year-old male hospitalized with serious unexpected events of kidney infection, pneumonia, death and nonserious decreased appetite, blood iron decreased, chills and nausea. Event latency 11 days after first dose mRNA-1273. Based on current available information and temporal association between the use of the product and the start date of the event, a causal relationship cannot be excluded.; Reported Cause(s) of Death: Possible Kidney Infection; Possible Pneumonia; Passed away