“Is This Out of Date?” — How to Read Expiry Dates on Medical Products
Posted on: 24/10/2025
We get it — you’re checking your stock, and suddenly a barcode seems to say your item expired last month. Panic sets in. But wait! Before you toss it, let’s decode what that label really means.
📦 The Barcode Isn’t Lying — But It Might Be Misunderstood
Most medical products today use GS1 barcodes, which pack a lot of critical information into a small space. These barcodes include:
-
Product ID: identified by (01)
-
Batch or lot number: identified by (10)
-
Expiration date: identified by (17)
The expiry date is encoded using a six-digit format: (17)YYMMDD — where:
-
YY = last two digits of the year
-
MM = month
-
DD = day
Example: If you see (17)251211, that means the product expires on 11 December 2025 - not 25 December 2011, and definitely not already expired!
🧠 Common Confusion: The “00” Day
In the past, some manufacturers used ‘00’ as a placeholder for the day — for example:
-
(17)241200 = December 2024 (exact day unspecified)
But as of January 2025, GS1 rules require that a full date must be included. So you’ll now see:
-
(17)250131 = 31 January 2025
This change helps avoid confusion and ensures better safety and traceability.
🔍 How Can You Check It Yourself?
If you’re unsure, you can:
-
Use a GS1 barcode scanner app (like Orca Scan or similar)
-
Look for the (17) prefix and decode the next six digits
-
Or take a photo and send it our way— we’re happy to help!
117417
40002854