Can Depression, Anxiety, or Sleep Problems Be Connected to a Service-Related TBI?

If VA has already served your traumatic brain injury, the depression that appears within a certain window after the injury is assumed to be part of it. You don’t need to prove the connection. Anxiety and sleep problems do not get that shortcut, but they can still be connected with the right medical evidence.

Many veterans never claim to have these conditions at all. They assume that the TBI rating covers them already. Often, this is not the case.

Depression Has a Built-In Presumption After a TBI

Under 38 CFR 3.310(d), the VA considers depression to be a result of a service-connected traumatic brain injury (TBI) if it occurs:

• Within 3 years of a moderate or severe TBI, or
• Within 12 months of a mild TBI

VA can only overcome this presumption with clear evidence to the contrary. The labels “mild”, “moderate”, or “severe” refer to how the injury was classified at the time it occurred. This has nothing to do with how we function today. The original records are important: loss of consciousness, post-traumatic amnesia, imaging and similar findings from the time of the injury.

Depression is the only mental health condition on this list. The same regulations also cover certain seizures, dementia, parkinsonism and hormone deficiency diseases after a traumatic brain injury (TBI).

Miss the window and the claim is not over. Say a veteran had a mild concussion blast and was diagnosed with depression two years later. The assumption no longer applies, but the claim can still be successful through the route below.

Anxiety and Sleep Problems Need a Medical Link

The same regulation allows secondary service connection for any condition proximately due to a service-connected injury, and for conditions where the injury has made things worse. To win, you generally need three things: a current diagnosis, a service-related TBI, and medical evidence linking the two at a level of “at least as likely as not”.

Strong secondary claims often include:

• A current diagnosis from a qualified healthcare professional, such as a generalized anxiety disorder or insomnia.
• Treatment records showing when the symptoms started in relation to the injury.
• An expert opinion explaining why the TBI may have caused or worsened the condition. (A one-line conclusion is rarely sufficient.)
• Statements from a spouse, family member, or friend describing how the person has changed since the injury.

Anxiety can also be directly linked to service, or indirectly linked to PTSD. The best course of action depends on your history.

How VA Rates Mental Health Symptoms After a TBI

VA rates TBI under Diagnostic Code 8045 in 38 CFR 4.124a. That code splits TBI residuals into cognitive, emotional/behavioral, and physical problems.

Here’s the part that trips people up. When you have a diagnosed mental disorder, the VA rates emotional symptoms under the General Rating Formula for Mental Disorders. Without a diagnosis, those same symptoms remain inside the TBI rating table under facets such as “neurobehavioral effects” and “subjective symptoms.”

VA won’t rate the same symptoms twice. If doctors can’t separate which symptoms come from TBI and which come from depression, VA assigns one rating based on whichever criteria best reflects your overall impairment. If the symptoms are clearly separable, each condition gets its own rating. A careful examination that sorts this out can change the result.

Where Sleep Problems Fit

Sleep difficulties after a brain injury can occur in various places. Frequent insomnia is an example of the subjective symptoms of TBI. “Chronic sleep impairment” is also a symptom that VA considers when rating depression or anxiety.

A separately diagnosed sleep disorder is different. It requires its own diagnosis, its own medical treatment, and it is coded under its own diagnostic category.

What’s Current in 2026

Diagnostic Code 8045 is still the VA rule. The VA published a proposal to overhaul the neurological rating system in November 2024, but it has not yet been finalized as of October 2026. VA’s separate proposal to revise mental health criteria also remains pending. If any rules change, the timing of your claim may matter.

Talk to a Veterans Disability Attorney About Your TBI-Related Conditions

Depression, anxiety, and sleep problems after a brain injury are real disabilities, and they often go unnoticed because no one puts the pieces together to make a claim. At the Veterans Benefits Law Group, we review your TBI records, identify conditions that were missed by the VA, and build medical evidence to connect them. If your claim has been denied or your rating does not reflect what you experience every day, contact us for a free consultation.