REL Relationship
To specify relationship and birth order of entity
Position
Element
Name
Type
Requirement
Min
Max
Repeat
REL-01Individual Relationship Code
Identifier (ID)
Mandatory
2
2
1
Code indicating the relationship between two individuals or entities
REL-02Number
Numeric (N0)
Optional
1
9
1
A generic number
REL02 is an ordinal number indicating birth order.