Can you check if a PSN code is valid without redeeming it?

I have a code for additional content on a Playstation game, and I want to know whether it is still valid, but I don't want to redeem it for myself.

If I enter it in the Playstation Store (on PS3, PS4 or the website), does it get redeemed to my account automatically, or can I enter it without redeeming? If it gets redeemed automatically, is there another way to check if it is valid?


The only way to check code is by trying to redeem it. After entering the code, if the code is valid, there will be a confirmation step, and you can cancel the operation. If the code is invalid or expired it will be rejected immediately with an error message.