, 81 - 82 ( 1990 ) ; Bell v . Derwinski , 2 Vet . App . 611 ( 1992 ) . The claim of entitlement to a TDIU rating is inextricably intertwined with the matter of service connection for an acquired psychiatric disability , to include PTSD and major depression , and consideration of that issue must be deferred pending resolution of the service connection claim . Accordingly , the case is REMANDED for the following action : 1 . Ask the appellant to identify all providers of mental health evaluation or treatment he has received , to include prior to his 1973 enlistment and after his 1976 separation from service and to provide all authorizations necessary for VA to obtain any private records of such