Back to the old “died with COVID” or “died of COVID”.
“Died of COVID” was/is pretty easy to figure out.
https://www.drugs.com/medical-answers/covid-19-symptoms-progress-death-3536264/
https://ccforum.biomedcentral.com/articles/10.1186/s13054-021-03492-x
https://www.acep.org/corona/covid-19-field-guide/diagnosis/severity-and-progression-of-disease
etc.