While post-traumatic stress disorder and moral injury share many symptoms, there are a few notable differences.
PTSD is a diagnosable mental disorder while moral injury is not yet a clinical diagnosis. In addition, PTSD is primarily fear-based, often as a result of an attack. Moral injury, on the other hand, is a moral dilemma, or confusion between interpreting right from wrong. Hallmark symptoms of moral injury include immense guilt and shame.