Number System Categories
UPC codes are
managed into the following five categories. Each category is assigned it's own Number
System Code at the first digit of the UPC.
** in this page, we will illustrate NS = 0, 6, 7
- NS = 0, 6, 7
code for source marking, administered
- NS = 2
NON-PLU code for instore marking
of fresh food products or similar.
- NS = 3
(the 1st digit of laveler code is 0 -- 7)
Administered by FDA (Food and Drug Administration). NDC (National Drug Code )
(the 1st digit of laveler code is 8 or 9)
Administered by FDA (Food and Drug Administration). HRI (Health Related Item Code )
- NS = 4 (the 1st digit of laveler code is 8 or 9)
An instore marking
code for items that are not of the NS = 2 category,
where the items could not be source marked
- NS = 5
Coupons (promotional discount coupons, newspaper coupons, leaflets, etc.)
Different UPC Versions
Several UPC versions of various
code lengths exist that incorporate various contents of the
UPC symbol system.
** in this page, we will illustrate only 1, 2 and 3.
- A version
12-digit type is the most generally used version.
- Add-on version
A version with an additional 2 or 5-digit supplementary code that indicates
the weight of the content.
- E version
8-digit version, suppressed from A version.
- D version
Combined versions, 14 to 32 digits length.
Summary of UPC Coding System
UPC A version
- NS = 0, 6, 7
- NS = 2
The mark ** is the checkdigit for the 4-digit price.
- NS = 3
* Laveler is, a maker or a trading firm, who has marked.
package code includes the lot number
- NS = 4
An instore marking,
attached to the products which is not
10 digits, except NS and the checkdigit,
can be used freely for data.
- NS = 5
Used for coupons.
** Family code is, the code of organization or dealer who
deals the clearance business of this coupon
** Price means the price to discount, or the discount rate.
UPC E version
E version is used in the following three cases:
when the standard A Version UPC code can not be displayed on small products
due to space restrictions, Zeros are removed in the code through the
use of the Zero Suppression Method,
which shortens the standard to 12 digit UPC to an 8 digit UPC.
The rules are as follows:
Where the original code is "0 - ABCDE - VWXYZ",
- VWXY are zero
0 - ABCDE - 0000Z = ABCDEZ
*the Z digit can only be 5 - 9.
- E and VWXY are zero
0 - ABCD0 - 0000Z = ABCDZ4
* the last "4" indicates that A and D are non-zero and therefore ABCD is
a 4-digit number.
- DE and VWX are zero
0 - ABC00 - 000YZ = ABCYZ3
* the last "3" indicates that A and C are non-zero,
and therefore ABC is a 3-digit number.
- DE and VW are zero, C is 0, 1 or 2
0 - AB000 - 00XYZ = ABXYZ0
0 - AB100 - 00XYZ = ABXYZ1
0 - AB200 - 00XYZ = ABXYZ2
NS is fixed to zero, and doesn't exist in the data of barcode.
Checkdigit is not calculated
from this new 6-digit code but rather is taken from the original UPC code
(prior to zero
and displayed on the right of the barcode.
- LAC (Local Assing Code )
A variant of instore marking,
using 5-digit, zero-headed (but last 4 digits must be within 1000 - 7999)
maker codes, and
1-digit item code.
- RZSC (Retailer Zero Suppression Code)
A private code which uses
the Zero Suppression.
UPC add-on version
A or E versions with an additional 2 or 5 digits of supplementary code.
Supplementary code is used for indicating the price of products,
issue month of magazine, etc.
- Supplementary Code Character Pattern
In the supplementary code, there are
20 characters for the E version
1 module bar,
is inserted between each of these characters.
There is no start/stop characters.
- Supplementary Code Checkdigit
The combinations of 2-digit supplementary codes,
from 00 to 99, are determined with
and this combination takes the place of the checkdigit.
The checkdigit for the 5-digit supplementary code is
the bottom 1 digit of
modulus 10 sum,
and expressed with the corresponding combination of odd/even parities.
UPC D version
This version is rarely used due to the introduction of better barcoding standards,
such as CODE-39, etc.