Mild TBI Isn’t “Minor”: What Veterans Should Know About VA Disability Claims in 2026

The word “mild” in your service records describes the day you were injured. It says nothing about how you function today. According to VA’s own rating guidelines, it does not affect your disability rating.

Most military brain injuries are classified as mild. Many veterans live with headaches, memory lapses, and short tempers for years before anyone connects those problems to their service.

VA Rates Your Symptoms Now, Not the Original Label

TBI ratings fall under 38 CFR § 4.124a. Diagnostic Code 8045 provides a note that explains that “mild”, “moderate”, and “severe” describe how the injury was classified at or near the time of occurrence. These labels do not reflect your current function, and they do not affect your DC 8045 rating.

Put simply, a “mild” TBI with serious long-lasting symptoms can earn a higher rating than a “severe” injury that has healed well.

How VA Scores Brain Injury Residuals

VA scores 10 different aspects, including memory, judgment, social interaction, subjective symptoms, and neurobehavioral effects. Each aspect is rated on a scale from 0 to 3, with some having a “total” score. Your overall rating is based on the highest individual score, not an average.

• Level 1: 10%
• Level 2: 40%
• Level 3: 70% or higher
• “Total”: 100%

One detail trips up many claims. For memory and attention, level 1 only requires a complaint of mild memory loss. Level 2 requires objective evidence from testing. Without neuropsychological testing in your file, this facet may stall at the lowest level.

A Mild TBI Can Support More Than One Rating

The cognitive table is only for one part of the evaluation. Residuals with their own diagnoses are rated separately. These include:

• Migraine headaches
• Tinnitus and hearing loss
• Seizures
• Vision problems, balance issues, or a lost sense of smell or taste
• A diagnosed mental health condition, which VA evaluates using the mental disorders rating schedule instead of the TBI table.

One limit applies. The VA cannot use the same symptoms for two different ratings. When the symptoms of TBI and PTSD cannot be separated, the VA will assign one rating based on whichever criteria best reflects your overall impairment.

The Depression Rule: Mild TBI Veterans Often Miss

Under 38 CFR § 3.310(d), the VA presumes that certain conditions are caused by service-connected TBI. For mild TBI, depression that appears within 12 months of the injury is the key factor. The VA treats this as secondary to the TBI unless there is clear evidence pointing to another cause.

The other four conditions on the list (Parkinsonism, unprovoked seizures, certain dementia, and hormone deficiency diseases) require moderate or severe traumatic brain injury. Missing those thresholds does not end the claim. The VA must still decide under general service connection rules, so strong medical opinion can win.

Check your classification, too. A TBI is ranked at the highest level if any single criterion is met. If post-traumatic amnesia lasts over a day, it meets the “moderate” level, even if your records just say “concussion.”

Building a Stronger Mild TBI Claim

Mild traumatic brain injury (TBI) claims are often dismissed on thin evidence, rather than weak facts. The focus should be on:

• Proof of the event, such as incident reports, medical records, or witness statements describing the incident or impact.
• Neuropsychological testing to assess cognitive and behavioral changes.
• Statements from family members or coworkers about changes in irritability or personality, which speak directly to the neurobehavioral aspect.
• A separate claim for each residual condition, rather than simply “TBI”.

At the C&P exam, describe your worst days honestly. Downplaying symptoms leads to ratings that don’t match your life.

Don’t Let One Word Shrink Your Claim

At Veterans Benefits Law Group, we salute the men and women who dedicated their lives to protecting our country. We also know how frustrating the VA process can be when a rating treats a “mild” brain injury as minor.

If VA denies or undervalues your TBI claim, our team can review the decision, identify missing evidence, and help you choose the right option for review. You generally have one year from the date of the decision to appeal your claim. Contact Veterans Benefits Law Group today for a free consultation regarding your TBI case.