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Military Health System

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Mental Health Assessment

The Mental Health Assessments (DHA4 and DHA5) are a series of deployment health screenings designed to identify mental health concerns, including post-traumatic stress disorder (PTSD) and other behavioral health conditions that may require referral for additional care and treatment.  These screenings are done in order to ensure individual and unit readiness.  The DHA 4 and 5 are required by all Service members deploying for 30 days or more in support of any contingency operation.

The DHA 4 is designed to be completed between 181 days and 18 months (545 days) after return from deployment, and the DHA 5 between 18 months (546 days) and 30 months (910 days) after return from deployment.  The DHA 4 and 5 assessments are the final screenings of the 5 part DHA assessment cycle that includes the pre-deployment health assessment, post-deployment health assessment, and post-deployment health reassessment.

Last Updated: October 14, 2022
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