TBI Symptoms the VA Often Overlooks

Traumatic brain injury (TBI) is a significant issue among veterans who served after September 11th. It affects hundreds of thousands of people who were exposed to blast injuries, vehicle accidents and combat trauma. Despite its prevalence, TBI remains one of the most underestimated conditions in the VA disability rating system. Many veterans receive lower disability ratings than they deserve not because their injuries are minor but because VA examiners miss critical symptoms during C&P exams.

How the VA Rates TBI

The VA evaluates traumatic brain injury (TBI) under 38 C.F.R. § 4.124a and Diagnostic Code 8045. The evaluation includes ten aspects of cognitive, emotional, behavioral, and physical function. Each aspect is scored on a 0-3 scale, and the highest score determines the overall disability rating, which can be 0%, 10%, 40%, 70% or 100%. Residual conditions such as migraines, seizures or a separate mental health diagnosis may qualify for secondary service connection under 38 C.F.R §3.310 and be rated separately from the primary TBI rating.

The system is designed to capture the full range of the impact of TBI. However, in practice, examiners often focus too narrowly on the more obvious cognitive deficits and miss the more subtle – but equally disabling – symptoms that affect veterans’ daily lives.

TBI Symptoms the VA Frequently Misses

Cognitive and Executive Function Impairments

The VA’s DC 8045 evaluation tool explicitly assesses memory, attention, concentration, and executive functions, but examiners often underestimate these difficulties because the veteran seems functional during a brief visit. Symptoms that are frequently missed include:

• Impaired planning and decision-making: difficulty organizing tasks, managing finances, or following multi-step instructions
• Slowed information processing: trouble keeping up in conversations or reading comprehension, which has noticeably declined since service
• Difficulty multitasking: once-routine job functions now seem overwhelming due to a reduced cognitive capacity

Sleep Disorders and Chronic Fatigue

Sleep disruption is one of the most common and most overlooked consequences of traumatic brain injury (TBI). Veterans often experience insomnia, hypersomnia, and sleep patterns that do not provide rest, which are different from sleep disturbances related to post-traumatic stress disorder (PTSD). 

Persistent fatigue exacerbates cognitive impairment, further worsening every aspect of the rating scale. Examiners who do not specifically ask about sleep rarely record it, leaving veterans without the assessment credit they deserve under the subjective symptoms section of DC 8045.

Hormonal and Endocrine Disruptions

The pituitary gland is located at the base of the brain and can be particularly vulnerable to injury from blast waves. After a traumatic brain injury (TBI), hypopituitarism – a lack of hormones like testosterone, cortisol, or thyroid-stimulating hormone – can cause fatigue, depression, weight changes, and sexual dysfunction. 

The Department of Veterans Affairs (VA) recognizes certain hormone deficiencies as presumptive conditions for TBI, but many veterans are not screened for these conditions and the connection between their TBI and the hormone deficiency is not documented in their claims.

Vision and Sensory Processing Problems

TBI can often damage the visual pathways, even if there is no direct injury to the eyes. Veterans may experience:

• Convergence insufficiency, which is difficulty focusing on nearby objects, causing eye strain and headaches when reading.
• Light and noise sensitivity, such as photophobia (fear of light) and phonophobia (fear of noise), which are often dismissed as anxiety instead of being recognized as neurological symptoms. 
• Changes in smell or taste, such as anosmia (loss of smell) and dysgeusia (distorted taste), following damage to the cranial nerves. These changes can go unnoticed for years.

Emotional and Behavioral Changes

Irritability, emotional instability, impulsivity, and significant changes in personality are symptoms of TBI that the VA often misattributes to PTSD. According to DC 8040, emotional and behavioral symptoms can be rated under the TBI framework if no separate mental health condition has been diagnosed. Veterans with overlapping diagnoses require careful legal analysis to ensure that their symptoms are not attributed to either condition.

What You Can Do About an Underrated TBI

If the VA’s C&P examiner does not ask about your sleep, hormones, vision, sense of smell, emotional control, or daily executive function during the examination, it may not be considered adequate under 38 C.F.R. § 4.2. You have the right to request a new examination and submit additional medical evidence, such as neuropsychological tests and specialist opinions, to fully document the extent of your condition.

Your TBI Deserves a Full and Fair Rating

At Veterans Benefits Law Group, PLLC, we help veterans across the country to identify the symptoms the VA may have missed, and secure the benefits they deserve for their service and sacrifice. If you feel your TBI was underestimated, we will stand with you. We offer free consultations to discuss your case.