Bill Mulder and Ryan Larkin Posttraumatic Growth Act This bill directs the Department of Veterans Affairs (VA) to conduct a two-year pilot program to study the effectiveness of nonprofit post-traumatic growth programs to determine: (1) the outcomes of such programs in contrast to traditional models of mental health care, (2) the possible integration of such nonprofit programs into VA mental health care programs, and (3) the budgetary impact of such integration. Veterans who are at risk of suicide and not participating in traditional mental health treatment are eligible for such program.