Facebook Developer Wiki (unofficial) contain not only list of FQL error codes but others too it’s somehow updated but not contain full list of possible error codes.
There is no any official or updated (I mean really updated) list of error codes returned by Graph API. Every list that can be found online is outdated and not help that much…
There is official list describing some of API Errors and basic recovery tactics.
Also there is couple of offcial lists for specific codes:
- Graph API › Errors
OAuth ErrorsCredits Error codes– Facebook Credits is unsupported from Sep 2013- Payments Error codes