Patient.deceasedDateTime should be Must Support

The following guidance is provided on the Patient Profile Page:     Additional USCDI Requirements For ONC’s USCDI requirements, each Patient must support the following additional elements. These elements are included in the formal definition of the profile. The patient examples include all of these elements. ... 8. date of death   and  Profile specific implementation guidance: * Note that  Date of Death   Previous Name ,  Suffix ,and  Previous address  are listed in the U.S. Core Data for Interoperability. Date of Death is communicated using the  Patient.deceasedDateTime  element.