No, PTSD (Post-Traumatic Stress Disorder) and adjustment disorder are two distinct and separate mental health conditions with different diagnostic criteria and characteristics. PTSD is a specific psychiatric disorder that develops following exposure to a traumatic event, which can lead to intrusive memories, flashbacks, avoidance of reminders of the trauma, and negative changes in mood and thinking that can last for years. On the other hand, adjustment disorder is a short-term emotional and behavioral response to a significant life stressor or change, and typically goes away when the stressor is removed.