3118c588_811_Implementation_Guide__Element_Name__
[Ref _] ISA14 [Id_] I13 [Req] M [Type] ID [Min/Max] 1/1 [Usage_] Must use [Element Name _] 
Acknowledgment Requested Description: Code sent by the sender to request an interchange acknowledgment (TA1) All valid standard codes are used.
811 Implementation Guide
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