Type of Disability Percentage of Veterans with Disability Tinnitus 24.9% Post-Traumatic Stress Disorder (PTSD) 23.2% Hearing Loss 18.3% Scars 9.7% Limitation of Knee Flexion 8.8% Lumbosacral or Cervical Strain 7.7% Limitation of Motion of Ankle 7.3% Migraine 6.9% Limitation of Motion of Hip 6.8% Degenerative Arthritis of the Spine 6.1%