Identifies the related provider order number or range of order numbers to be completed on the same date as this one.
NOTE 1: There are two CRO fields to accommodate more than one related order.
USAGE: This field is conditional.
NOTE 1: Prohibited when the ACT field on the ASR Form is "R", otherwise optional.
DATA CHARACTERISTICS: 17 alpha/numeric characters
EXAMPLE: N 2 7 0 3 5 1 9