To signify the end of the time period indicated and to reset accumulated totals to zero for the next functional group of transaction sets
Code identifying the type of time period.
If either BT203 or BT204 is present, then the other is required.
Number identifying the specific time period. (01 through 12 for month, 00 through 99 for year).
Code identifying the type of time period.
Number identifying the specific time period. (01 through 12 for month, 00 through 99 for year).
