A 2008 VA study showed 33.3% of veterans have depression symptoms. To establish service connection, veterans need a current diagnosis and evidence of an in-service event. The VA uses the DSM-5 to rate depression severity from 0% to 100%. Although veterans typically receive one mental health rating, severe cases might qualify for 100% Individual Unemployability benefits. PTSD and depression can coexist but are usually rated as one condition. The VA provides assistance for those in crisis and navigating mental health disability claims.