Lot number
The lot number is the link between a device and its production records, so it drives traceability in complaints and recalls. ISO 15223-1 uses the title batch code for the LOT symbol.
production control containing a combination of letters or numbers associated with a single lot or batch Note 1 to entry: The title of symbol 5.1.5 uses the synonym batch code. [SOURCE: ISO 20417:2021,[15] 3.15, modified — Note 1 to entry has been added.]
ISO 15223-1:2021, clause 3.9
production control containing a combination of letters or numbers associated with a single lot (3.14) or batch (3.14)
ISO 20417:2021, clause 3.15