3118c588_811_Implementation_Guide__Element_Name__
[Ref _] ISA04 [Id_] I04 [Req] M [Type] AN [Min/Max] 10/10 [Usage_] Must use [Element Name _] 
Security Information Description: This is used for identifying the security information about the interchange sender or the data in the interchange; the type of information is set by the Security Information Qualifier (I03)
811 Implementation Guide
Element Name _