Lot Control Codes

Code	Value
A3	Control number
B8	Batch number
HN	Heat number
JN	Job number
KM	Shelf life code
LT	Lot number
PJ	Product date code
PO	Purchase order number
RO	Roll number
SC	Seller’s date code
SL	Seller’s lot number
SN	Serial number
ZZ	Mutually defined
WD	Warehouse date code
WL	Warehouse lot number
NA	Not assigned

Source: ASC-X12 Data Element 235 - Product/Service ID Qualifier

Note

Codes NA, WD, and WL are not part of the ASC-X12 standards codes.