Here is exciting news on discharge upgrades for service personnel claiming PTSD. It would be hard to find anything more user-friendly than a very recent memo from the Secretary of Defense.
The SEDEF’s policy letter speaks of “special consideration” which the boards must give to PTSD-related situations. Several times, the memo uses the word “liberal” to explain its stance..
With this policy letter,  There are now presumptions that documented conditions existed at the time of discharge;  they will be considered “potential mitigating factors” in weighing misconduct ;  the corrections boards will “exercise caution “ in reviewing the cases; and  Statute of Limitations matters will be waived in appropriate situations. Also,  corrections boards may obtain advisory opinions from mental health professionals within DOD on PTSD-related conditions.
This policy letter should provide a path for many who gained ‘bad’ discharges under situations of traumatic stress.