VA Secondary Conditions for MST
Published 3/4/2026 by Shanon Mendez
How secondary conditions can connect to MST-related primary diagnoses and affect combined VA disability ratings.
Secondary conditions may be service-connected when they are caused or aggravated by a primary MST-related condition such as PTSD. This can increase your overall combined rating when properly documented.
Common Secondary Patterns
- Sleep disorders and chronic fatigue
- Migraines and stress-related physical symptoms
- Depression or anxiety linked to trauma sequelae
- Substance use conditions where medically documented
Evidence should clearly explain the relationship between the primary and secondary condition. Review evidence planning, DBQ guidance, and MST VA disability strategy.
After adding secondary conditions, estimate combined outcomes with the VA rating calculator.
Official references: VA secondary condition overview and VA disability evidence needs.