TBI Residuals: The Three-Level Rating System

Traumatic brain injury is one of the most complex conditions the VA rates. A blast, a vehicle crash, a fall, or a sports injury can leave behind problems that touch your memory, your mood, your balance, and your senses — sometimes all at once. The VA does not rate TBI like most conditions, where one number captures the whole disability. Instead, it breaks your brain injury into ten separate areas of function and evaluates each one. Understanding how this works helps you spot gaps in your evidence before you file, and it helps you read your decision letter when it arrives.

This guide walks through the diagnostic code for TBI, the unusual three-and-a-half-level rating ladder, and the tricky overlap between TBI residuals and conditions like PTSD or depression. As always, the goal here is to explain the standard adjudicators apply — not to predict what any one claim will do.

How DC 8045 evaluates the 10 facets

The TBI VA rating lives under Diagnostic Code 8045 in 38 CFR 4.124a. Unlike almost every other rating, DC 8045 does not give you a single percentage based on symptom severity. Instead, it splits the residuals of traumatic brain injury into three broad categories — cognitive, emotional/behavioral, and physical — and then evaluates a set of facets within them.

The ten facets the examiner scores are:

• •Memory, attention, concentration, and executive functions
• •Judgment
• •Social interaction
• •Orientation
• •Motor activity (with intact motor and sensory system)
• •Visual spatial orientation
• •Subjective symptoms (like headaches, dizziness, sensitivity to light)
• •Neurobehavioral effects
• •Communication
• •Consciousness

Each facet gets a level of impairment: 0, 1, 2, 3, or total. The VA does not add the facets together. Instead, it finds the single highest facet level you score, and that level drives your overall TBI rating. If your worst facet is a level 2, your TBI evaluation is based on level 2 — even if every other facet is a 0 or 1.

The one exception: if any facet is rated "total," the overall TBI rating is 100 percent.

The level structure (0, 1, 2, 3, total)

Because the highest facet level controls everything, it helps to know how those levels translate into a percentage. DC 8045 ties each level to a specific rating:

Notice the jumps. The difference between a level 1 and a level 2 facet is the difference between a 10 percent and a 40 percent rating. That is a big leap, and it is why the wording of your C&P exam matters so much. A single facet that the examiner scores one level higher can change your entire TBI evaluation.

What separates the levels is the degree of impairment described in the rating table. For example, under the memory and executive function facet, a level 1 might describe mild loss of memory or mild trouble concentrating that you can usually work around. A level 2 describes more obvious problems that interfere with work, family, or daily tasks. A level 3 describes severe impairment, and "total" is reserved for things like a persistent vegetative state or a total inability to communicate. The exact language for each facet lives in the rating table itself, so it is worth reading 38 CFR 4.124a closely with your records in hand.

If you already have a decision and the level assignments do not match how you actually function, you can run the letter through Commander Decode to get a plain-English breakdown of how the rating was built.

Separating TBI residuals from co-occurring mental health conditions

This is where many TBI claims get complicated. TBI and mental health conditions like PTSD, anxiety, and depression share a lot of symptoms — trouble sleeping, irritability, poor concentration, memory problems, and social withdrawal can come from either one.

DC 8045 addresses this directly. Under the rule, if a symptom can be clearly attributed to a separately rated condition (like a mental health diagnosis), the VA evaluates it under that condition instead of as a TBI facet. But here is the key protection: when it is not possible to separate which condition is causing an emotional or behavioral symptom, the VA is instructed to evaluate it under whichever approach gives you the higher rating, and to avoid pyramiding — rating the same symptom twice under two codes.

In practice, this means:

• •You can be service-connected for both TBI and a mental health condition.
• •The VA tries to assign each symptom to the right condition.
• •Overlapping emotional symptoms that cannot be cleanly separated should not be double-counted, but they also should not vanish — they get rated under one code or the other.

Because the math interacts in unusual ways, it is smart to model how your conditions combine. The VA Disability Calculator uses VA math (not simple addition) so you can see how a TBI rating and a separate mental health rating actually combine. If you think you have overlapping or secondary conditions tied to your brain injury, our Secondary Conditions tool can help you explore those links.

Cognitive, emotional, and physical residuals

The ten facets fall into three buckets, and it helps to think about your symptoms this way when you gather evidence.

Cognitive residuals

These are problems with thinking. Trouble remembering appointments, losing your train of thought, struggling to follow multi-step instructions, poor judgment, difficulty staying oriented to time and place, and slowed processing all fall here. Cognitive complaints often drive the highest facet levels, so document them carefully.

Emotional and behavioral residuals

This covers neurobehavioral effects — irritability, impulsiveness, aggression, mood swings, and reduced motivation. As noted above, these are the symptoms most likely to overlap with PTSD or depression, so be specific about how they show up.

Physical residuals

These include the subjective symptoms many TBI veterans live with daily: chronic headaches (often migraine-type), dizziness, balance problems, sensitivity to light and noise, tinnitus, vision changes, and fatigue. Some physical residuals — like migraines or hearing loss — may be rated separately under their own diagnostic codes rather than as a TBI facet, which can mean additional ratings on top of your TBI evaluation. Keep an eye out for those, because they are easy to miss.

A C-File Analyzer review can help surface residuals already documented in your records that may not have been claimed yet.

Evidence that documents TBI residuals

The strongest TBI claims tie three things together: proof of the in-service event, a current diagnosis, and evidence of ongoing residuals. Useful evidence includes:

• •Service records showing the injury event — combat reports, line-of-duty determinations, incident reports, or treatment for a head injury, concussion, or blast exposure.
• •A current TBI diagnosis from a qualified provider. Under VA policy, the initial TBI diagnosis is generally made by a physiatrist, psychiatrist, neurologist, or neurosurgeon.
• •Treatment records and neuropsychological testing that document your cognitive, emotional, and physical symptoms over time.
• •Lay statements from you, your spouse, coworkers, or battle buddies describing what changed and how the residuals affect daily life. These are powerful for symptoms that do not show up on imaging.

Before you file, it is worth checking what is missing. Our Evidence Gap Analyzer flags weak spots — like a missing nexus or thin documentation of a specific facet — so you can shore them up first. If you have not locked in an effective date yet, the Intent to File Tracker can preserve it while you gather records.

The TBI C&P exam

Most TBI claims involve a Compensation and Pension exam, and the examiner usually documents findings on a TBI Disability Benefits Questionnaire (DBQ) built around the ten facets. The examiner will ask about your memory, mood, headaches, balance, and daily functioning, and may order or review neuropsychological testing.

Because the exam scores each facet by level, how you describe a typical bad day matters. Vague answers like "I'm fine" can understate residuals that genuinely affect you. Be honest, be specific, and give concrete examples — missed appointments, an argument triggered by light sensitivity, getting lost on a familiar route.

Practicing helps. You can rehearse the questions and get coaching with our C&P Exam Simulator, or build a condition-specific guide with C&P Exam Prep so you walk in knowing what each facet covers.

Finally, because the facet rules and pyramiding logic are genuinely tricky, have a VA-accredited VSO review your claim. They can read your facet levels against the rating table and help you present your residuals clearly.