Understanding Army Physical Demands and VA Disability Ratings
The 12 most common VA disability claims made by Army veterans include tinnitus, bilateral hearing loss, lumbosacral spine strain, limitation of knee flexion, cervical spine strain, limitation of arm motion, limitation of ankle motion, pes planus (flat feet), post-traumatic stress disorder (PTSD), sciatic nerve damage (sciatica), migraine headaches, and respiratory or scar conditions such as obstructive sleep apnea and burn scars.
These conditions stem directly from intense physical conditioning, airborne operations, heavy load carriage, combat deployments, and acoustic trauma.
For many soldiers, the disability claim starts years before separation. A back injury may begin during ruck marches or repeated vehicle operations. Hearing problems may start after exposure to artillery, machine guns, aircraft, breaching charges, generators, and armored vehicles. Knee, ankle, shoulder, and neck problems often develop from airborne landings, field exercises, combatives, body armor, and long periods of carrying equipment. Mental health and neurological conditions may follow combat deployments, training accidents, military sexual trauma, chronic pain, traumatic brain injury, or the cumulative stress of military service.
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Army service places unique, intense physical demands on the human body. Between carrying heavy rucksacks weighing upwards of 70 to 100 pounds, conducting airborne operations, dismounting from armored tactical vehicles, and spending years around heavy artillery, small arms fire, and tracked machinery, soldiers undergo severe bodily stress over years of active duty and reserve commitments. Infantry, armor, artillery, aviation, military police, combat engineer, logistics, and medical personnel can all experience service-connected disability, even when their military occupational specialty did not involve daily direct combat.
When you transition out of service and apply for benefits, the Department of Veterans Affairs does not issue compensation based merely on a military diagnosis. Instead, the VA assigns percentage ratings based on the VA Schedule for Rating Disabilities (VASRD), located in Title 38 of the Code of Federal Regulations. To better understand how individual percentages combine into an overall rating, you can consult our VA Disability Rating Chart 2026 Guide.
The key question is functional impairment. The VA looks at how a service-connected condition affects ordinary life and work capacity. A veteran can have a confirmed diagnosis but still receive a lower rating if the measurable impairment is mild. Conversely, a condition with severe symptoms, frequent flare-ups, documented treatment, and credible lay evidence may support a higher evaluation when the rating schedule allows it.
The VA calculates multiple conditions using non-additive math (often called “VA math”). In this system, each rating percentage applies to your remaining “whole person” efficiency rather than adding directly together. For instance, if an Army veteran receives a 50% rating for PTSD and a 10% rating for tinnitus, the 10% applies only to the remaining 50% non-disabled efficiency, resulting in a combined disability rating of 55%, which rounds up to 60%.
A successful claim generally needs three elements: a current diagnosed disability, an in-service event or exposure, and a medical nexus connecting the two. Army veterans often use service treatment records, line-of-duty determinations, deployment records, hearing conservation records, airborne or jump logs, combat awards, physical therapy notes, imaging results, prescriptions, private medical opinions, and buddy statements to establish those elements. For Guard and Reserve soldiers, the duty status at the time of injury can also matter, so orders, drill records, annual training documents, and active-duty mobilization records should be preserved.
During the Compensation and Pension (C&P) exam, medical examiners assess the functional impairment caused by your service-connected conditions. For musculoskeletal claims, examiners must use a goniometer (a specialized medical protractor) to measure range of motion in degrees. Under longstanding VA regulations and legal precedents, the examiner must measure where pain begins and evaluate functional loss during flare-ups, repetitive motion, and daily weight-bearing activity.
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Veterans should describe symptoms accurately and consistently at the C&P exam. Do not exaggerate, but do not minimize the condition either. If your knee gives out on stairs, your back locks during flare-ups, your migraines require you to lie down in a dark room, or your PTSD symptoms affect work and family life, explain that in practical terms. The most persuasive evidence usually connects the diagnosis to day-to-day impairment: missed work, limited lifting, difficulty standing, sleep disruption, medication side effects, reduced concentration, panic attacks, or inability to complete physical tasks that were once routine.
Because the 12 most common VA disability claims made by Army veterans often overlap, secondary claims are also important. A service-connected lumbar spine condition can cause or aggravate sciatica. Chronic knee pain can alter gait and worsen the opposite knee, hips, or back. PTSD may aggravate sleep impairment, headaches, gastrointestinal symptoms, or substance-use recovery challenges. Secondary service connection requires medical evidence showing that one service-connected disability caused or aggravated another condition, not simply that both conditions exist at the same time.
The 12 Most Common VA Disability Claims Made By Army Veterans
The following table summarizes the most frequent conditions, their diagnostic codes, typical rating schedules, and key rating drivers as highlighted in legal analysis of common VA disability claims.