TBI VA Rating

By Shirley Chia. Published 2026-05-30. Source: 38 CFR 4.124a DC 8045, 38 CFR 4.130.

Why DC 8045 is structurally different

Most Part 4 Diagnostic Codes use a brackets-by-severity formula (mild/moderate/severe yielding a fixed percentage). DC 8045 instead scores ten facets and uses only the single highest score to set the rating. This produces some counterintuitive math. A veteran with ALL ten facets scored at 2 receives the same 40% rating as a veteran with ONE facet at 2 and nine at 0. The structure rewards severity in any single domain over breadth of mild impairment.

The 8045 rating scale is also non-linear. Facet scores 0, 1, 2, 3, Total map to 0%, 10%, 40%, 70%, 100%. There is no 20%, 30%, 50%, 60%, 80%, or 90% available under DC 8045 alone. To reach those intermediate percentages a veteran combines TBI with separately rated residuals under 38 CFR 4.25.

The ten facets

Cognitive facets (six)

1. Memory, attention, concentration, executive functions. Scored by complaint severity and impact on work and social functioning. 0 = no complaint. 1 = mild memory loss, no impact. 2 = moderate loss, mild impact. 3 = severe loss with severe impact (cannot maintain employment).

2. Judgment. 0 = normal. 1 = mildly impaired in complex situations. 2 = moderately impaired (occasional poor decisions). 3 = severely impaired (unable to make decisions in routine situations).

3. Social interaction. 0 = routinely appropriate. 1 = occasionally inappropriate. 2 = frequently inappropriate. 3 = inappropriate most of the time.

4. Orientation. 0 = always oriented. 1 = occasionally disoriented to one of person/time/place/situation. 2 = frequently disoriented to one or two. 3 = consistently disoriented to two or more. Total = total disorientation.

5. Motor activity (with intact motor and sensory system). Slowness of execution that is NOT due to a peripheral lesion. 0 = normal. 1 = mildly slow on complex tasks. 2 = moderately slow on simple tasks. 3 = unable to perform without assistance.

6. Visual-spatial orientation. 0 = normal. 1 = mild difficulty in unfamiliar surroundings. 2 = moderate difficulty (gets lost in familiar surroundings). 3 = severe (cannot use assistive devices).

Emotional/behavioral facets (two)

7. Subjective symptoms. Mild or occasional headaches, mild anxiety = 1. Three or more subjective symptoms that mildly interfere with work or family = 2. Three or more symptoms that moderately interfere = 3.

8. Neurobehavioral effects. Irritability, impulsivity, lack of motivation, verbal aggression, physical aggression. 0 = none. 1 = one or more that do not interfere. 2 = one or more that occasionally interfere. 3 = one or more that frequently interfere with social and occupational functioning.

Physical/communication (two)

9. Communication. Ability to communicate by spoken and written language. 0 = able to communicate, comprehend. 1 = comprehends and communicates complex ideas with occasional difficulty. 2 = inability to communicate either by spoken or written language at least a third of the time. 3 = unable to communicate by spoken or written language. Total = complete inability to communicate.

10. Consciousness. Scored only at Total. Persistent vegetative state or minimally conscious state alone yields 100%.

The overlap rule with 38 CFR 4.130

The DC 8045 note in 38 CFR 4.124a is explicit: when symptoms of TBI overlap with a separately diagnosable mental disorder rated under 38 CFR 4.130, the rater evaluates the symptoms under whichever criteria yield the HIGHER rating, not both. This codifies the anti-pyramiding rule of 38 CFR 4.14, which prohibits compensating the same disability twice under different Diagnostic Codes.

Practical consequence: a post-blast veteran with PTSD (rated 70% under DC 9411) and TBI with neurobehavioral facet at 2 (which would alone yield 40% under DC 8045) receives the PTSD rating at 70%. The 40% TBI rating is subsumed because the neurobehavioral symptoms overlap with the PTSD symptoms. The cognitive facets of TBI that do NOT overlap (memory, executive function, motor activity) may still support a separate residual rating under DC 8045 if they are factually distinct.

This is one of the most contested issues in TBI claims. The Court of Appeals for Veterans Claims in Mauerhan v. Principi, 16 Vet. App. 436 (2002) held that the rating criteria for mental disorders are not strictly bound to the listed symptoms — the criteria are illustrative — which gives raters discretion to consider TBI-overlapping symptoms within the 4.130 framework rather than splitting them.

Separately rated residuals that DO stack

Distinct neurological residuals are rated SEPARATELY and combined under 38 CFR 4.25:

• Migraine — DC 8100, up to 50%. See the migraine VA rating guide.
• Seizure disorder — DC 8911 or 8910 depending on type and frequency.
• Peripheral nerve damage — DCs 8510-8540 depending on nerve involved.
• Tinnitus — DC 6260 at 10%.
• Loss of smell (anosmia) — DC 6275 at 10%.
• Hemiparesis or paralysis — DCs under 4.124a depending on extremity.

PACT Act presumption

The Sergeant First Class Heath Robinson Honoring Our Promise to Address Comprehensive Toxics Act of 2022 (PACT Act, Public Law 117-168) created presumptive service connection for veterans who served in covered locations (Iraq, Afghanistan, Syria, Djibouti, Egypt, Jordan, Lebanon, Yemen, Uzbekistan, the Gulf War theater) and who develop conditions linked to airborne hazards including burn pits and particulate matter. While the PACT Act primary presumptive list centers on cancers and respiratory conditions, blast-related TBI from these deployments is supported through documented exposure plus current diagnosis.

See the PACT Act complete conditions guide for the full presumptive list.

Evidence that wins TBI claims

1. Service treatment records documenting the in-service event (blast, MVA, fall, concussion) and any initial assessment.
2. Post-deployment health assessment with TBI screening (DVBIC three-question screen).
3. Current diagnosis from a neurologist, neurosurgeon, physiatrist, or psychiatrist per the M21-1.
4. Neuropsychological testing report objectively measuring memory, attention, executive function, processing speed.
5. Lay statements from family and former unit members documenting behavioral changes, memory failures, irritability. See lay statements and buddy letters.
6. Nexus letter linking current TBI to in-service event for cases without a direct STR trail. See nexus letters that win VA claims.

The Federal Circuit in Buchanan v. Nicholson, 451 F.3d 1331 (Fed. Cir. 2006), held that the absence of contemporaneous medical records does not, by itself, render lay testimony incredible. Buchanan is regularly cited in TBI appeals where service treatment records are silent on a documented blast event.

Worked example

Sources cited in this article

• 38 CFR 4.124a — Schedule of ratings, neurological conditions and convulsive disorders (DC 8045)
• 38 CFR 4.130 — Schedule of ratings, mental disorders
• 38 CFR 4.14 — Avoidance of pyramiding
• 38 USC 1154(b) — Consideration to be accorded time, place, and circumstances of service
• Mauerhan v. Principi, 16 Vet. App. 436 (2002) (mental disorder rating criteria are illustrative not exhaustive).
• Buchanan v. Nicholson, 451 F.3d 1331 (Fed. Cir. 2006) (absence of contemporaneous records does not render lay testimony incredible).
• PACT Act of 2022, Public Law 117-168.

VetDisabilityCalc is an independent reference site. We are not VA-accredited and we do not prepare or present VA claims. This guide is reference material and is not legal advice.