Comment:

The purpose of capturing patient's family member history is to support assessment of the patient's risk

The sturctural definition of this resources does not appear to support execution of the assessment easily

A better structue is:

FamilyMemberHistory.condtion

.condtion.familyMember (1..*)

.familyMember.relaship

.onset

.Is condition cause of death?

age of death

.....

With this proposed structure, for any given condition (e.g. Type 2 DM, the structure supports capturing of all family members having the condition, relationship (e.g. grand parent, parent, sibling, first cousins ...etc), their age of onset, age of death ...etc being logically clustered and relative risk for patient computed

Summary:

Change to be condition-centric