Can I hold a memorial service when I die in the hospital?

Of course. Died in the hospital. The medical certificate of death is issued by the hospital, and then the residents' funeral certificate is exchanged at the health and epidemic prevention station in the jurisdiction. Then take the residents' funeral certificate, the deceased's account and ID card to the police station in the jurisdiction to cancel the account, and the police station will sign the residents' funeral certificate. The ashes can be buried in operating cemeteries or on auspicious days. Contact the funeral and dress clean: let the deceased walk the last journey cleanly.