To specify the validity of the request and indicate follow-up action authorized
Code indicating a Yes or No condition or response
AAA01 designates whether the request is valid or invalid. Code "Y" indicates that the code is valid; code "N" indicates that the code is invalid.
Code identifying the agency assigning the code values
If AAA02 is used, AAA03 contains a code from an industry code list.
Code identifying reason for rejection as assigned by issuer
Code identifying follow-up actions allowed
