To indicate the start of a transaction set and to assign a control number
To indicate the beginning of a transaction set
To specify the validity of the request and indicate follow-up action authorized
To specify identifying information
To identify the type or transmission or both of paperwork or supporting information
To transmit information in a free-form format, if necessary, for comment or special instruction
To identify a party by type of organization, name, and code
800
N2
Additional Name Information
To specify additional names
To specify the location of the named party
To specify the geographic place of the named party
1100
PER
Administrative Communications Contact
To identify a person or office to whom administrative communications should be directed
1200
IN1
Individual Identification
To provide identification of an individual or entity
1300
IN2
Individual Name Structure Components
To sequence individual name components for maximum specificity
To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)