VA Rating for TBI (Traumatic Brain Injury)

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Residuals of traumatic brain injury — from blast exposure, vehicle accidents, falls and impacts — rated on ten cognitive and subjective facets plus separately rated residuals. This guide quotes the actual rating criteria from 38 CFR Part 4 for diagnostic code 8045, explains what the C&P examiner measures, covers the presumptive and secondary routes to service connection, and lists the reasons these claims come back denied — and how each gets fixed.

How the VA rates tbi (traumatic brain injury) in 2026 — the exact criteria

These are the criteria a VA rater applies, quoted from the rating schedule (§ 4.124a). Your rating is the highest level whose wording your evidence meets — and evidence that never uses these words tends to be rated at the bottom.

DC 8045 — Residuals of traumatic brain injury (TBI)

Three areas of dysfunction are evaluated: cognitive, emotional/behavioral, and physical. Cognitive impairment and subjective symptoms are rated on the ten-facet table (memory/attention/concentration/executive functions, judgment, social interaction, orientation, motor activity, visual spatial orientation, subjective symptoms, neurobehavioral effects, communication, consciousness).

Emotional/behavioral dysfunction is rated under § 4.130 when a mental disorder is diagnosed. Residuals with their own diagnosis — migraine, Meniere's, hearing loss, tinnitus, seizures — are rated separately under their own codes and combined.

The medical labels "mild," "moderate" and "severe" TBI describe the injury at the time it happened, not the current rating.

Honest ceiling: 40% on the worst cognitive facet; residuals rate separately.

What the C&P examiner measures

A TBI DBQ scores ten facets — memory/attention, judgment, social interaction, orientation, motor activity, visual-spatial, subjective symptoms, neurobehavioral effects, communication, consciousness — on levels 0 to 3 or total. Bring a witness (spouse) account of memory and behavior changes; the examiner may not see them in a 45-minute visit.

The questions that get at the rating criteria — answer them for yourself before the exam:

• Ever get your bell rung — blasts, IEDs, a vehicle wreck, hard landings?
• Since then, any trouble with memory, or finding the word you want?

Service connection: presumptive, direct, or secondary

A service-connected TBI carries its own secondary presumptions (38 CFR 3.310(d)): Parkinsonism, unprovoked seizures, dementias, depression, and hormone-deficiency diseases are presumed secondary depending on TBI severity and timing — no nexus opinion required.

Every service-connection claim has three legs: a current diagnosis (the C&P exam can supply it), an in-service event, injury, exposure or an already-connected condition, and a link between the two — which the VA's own examiner addresses at the exam for direct and secondary claims, and which the law supplies for presumptive ones. You do not need a private opinion to file; you need one only if the VA denies for lack of nexus, and a supplemental claim within one year keeps your effective date.

Secondary conditions veterans miss

Conditions that commonly develop because of this one can be service-connected on top of it, each with its own rating:

• Migraines secondary to TBI — Rates separately on top of the TBI facets
• MH secondary to or aggravated by TBI — Distinct-symptom carve-out matters

What the medical literature says

NASEM, Gulf War and Health, Vol. 7: Long-Term Consequences of Traumatic Brain Injury (2009)
TBI — including mild TBI — is associated with long-term neurologic outcomes: headache, cognitive effects, and more. Why it matters: Every TBI-residual claim.

Why tbi (traumatic brain injury) claims get denied — and the fix

• Residuals with their own diagnosis (migraine, tinnitus, sleep) folded into the TBI rating instead of rated separately.
• Facets scored low because no one described memory, temper and organization changes — a spouse or supervisor statement fills it.

A denial is a grade on the evidence packet, not a verdict on you. Filed as a supplemental claim within one year, the fix keeps your original effective date.

Filing it right the first time

1. Intent to File first. It locks your effective date for a year — back pay runs from that day, not from the day the package is ready.
2. File everything at once. Every condition with a real symptom and a plausible route — direct, presumptive, secondary, increase — goes in one claim. The VA's duty to assist schedules the exam and pulls your records; a condition held back "for more evidence" only starts its clock later.
3. Your statement in the criteria's words. A Statement in Support of Claim (VA Form 21-4138) that describes your worst days and your typical days using the language in the table above is the evidence the rater reads first.
4. Your records. VA records through Blue Button, decision letters and code sheet from VA.gov, and private records from each doctor's office or patient portal — or a signed 21-4142 so the VA pulls them.
5. Prepare for the exam. Know what the examiner measures (above) and answer honestly, including the bad days.

Frequently asked questions

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Rating criteria verified against eCFR (38 CFR Part 4) — last reviewed 2026-09-19. Regulations change; confirm anything decision-critical at ecfr.gov.