To indicate the start of a transaction set and to assign a control number
To indicate the beginning of a transaction set
To identify a party by type of organization, name, and code
400
PER
Administrative Communications Contact
To identify a person or office to whom administrative communications should be directed
To designate the entities which are parties to a transaction and specify a reference meaningful to those entities
200
N9
Extended Reference Information
To transmit identifying information as specified by the Reference Identification Qualifier
300
AMT
Monetary Amount Information
To indicate the total monetary amount
To convey accounts-payable adjustment information for the purpose of cash application, including payer-generated debit/credit memos
500
AMT
Monetary Amount Information
To indicate the total monetary amount
To specify identifying information
To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)
