N9 Reference Number
To transmit identifying numbers and descriptive information as specified by the reference number qualifier
Code qualifying the Reference Number.
At least one of N902 or N903 must be present.
Reference number or identification number as defined for a particular Transaction Set, or as specified by the Reference Number Qualifier.
Free-form descriptive text.
Time expressed in 24-hour clock time (HHMM, time range: 0000 though 2359).