If I get monthly VA service-connected disability compensation, can I still get my 2013 taxed severance pay back without it effecting my monthly VA Disability check?

If I get a monthly service-connected disability compensation from the Department of Veterans Affairs (80%), can I still get my taxed severance pay back (roughly$ 5,000 to Arkansas and $20,000 to Federal)? Without it effecting my monthly VA Disability pension? It was taxed in 2013.