The symbol comprises the following elements:

• Leading quiet zone

• Start pattern (narrow bar, narrow space, narrow bar, narrow space)

• One or more pairs of symbol characters that represent data (including an optional check digit)

• Stop pattern (wide bar, narrow space, narrow bar)

• Trailing quiet zone

Deutsche Post Leitcode encodes a string of 14 digits, as follows:

• Five-digit postal code

• Three-digit street identifier

• Three-digit house number

• Two-digit product code

• One-digit check digit

Deutsche Post Leitcode imposes a format on the human readable interpretation that includes periods (which are not part of the barcode symbol).

This symbology supports all numeric digits (0-9).

Deutsche Post Leitcode contains a check digit that is based on the modulo 10 (mod 10) algorithm.