Interleaved Code 2 of 5 - Barcode Type¶
This self-checking symbology encodes pairs of numbers, and so can only encode an even number of digits (0-9). If an odd number of digits is entered, a leading zero is added by Zint. No check digit is added.

Based on Industrial Code 2 of 5. It is a high-density barcode, where spaces contain information, making printing less fault tolerant.