VA Disability Rating for TBI 2026: The Complete 10-Facet DC 8045 Guide

Traumatic brain injury is one of the most complex conditions in the VA disability system — not because the regulations are hidden, but because the 10-facet evaluation system under 38 CFR § 4.124a, Diagnostic Code 8045 is unlike any other rating scheme VA uses. Most disabilities are rated by severity on a single scale. TBI is rated across ten separate cognitive and behavioral domains, and one critical rule changes everything: the single highest facet score determines your overall rating.

That means a veteran who is severely impaired in memory but relatively functional in other areas still qualifies for a 70% rating. That means documenting your worst area of impairment — thoroughly — matters more than describing your average day. This guide walks through every element of the TBI rating process, from understanding each facet to maximizing secondary conditions and preparing for your C&P exam.

How VA Rates TBI: The DC 8045 System

The statutory and regulatory basis for TBI compensation begins at 38 USC § 1110 (service connection for wartime disabilities) and flows through the rating schedule at 38 CFR Part 4, Subpart B, § 4.124a (the Schedule of Ratings for Neurological Conditions). Diagnostic Code 8045 is specifically titled "Residuals of traumatic brain injury (TBI)."

The key word is "residuals." VA does not rate the TBI event itself — it rates the ongoing impairments that remain after the injury. A veteran who had a concussion in 2010 and now has persistent memory problems, emotional dysregulation, and chronic headaches may be rated on all of those residuals under 2026 DC 8045 and related codes.

DC 8045 was significantly revised in 2008, when VA adopted the current 10-facet system in response to the surge of TBI cases from OEF/OIF combat operations. The VA/DoD Clinical Practice Guideline for Management of Concussion-Mild TBI (updated most recently in 2023) provides the clinical framework that underlies DC 8045 adjudication and C&P examiner guidance.

The 10 Facets Explained

Each of the ten facets is scored at one of four levels: 0 (no impairment — this domain is intact), 1 (mild impairment — symptoms present but manageable), 2 (moderate impairment — daily functional limitation), or 3 (severe impairment — significant disability in this domain).

The most commonly elevated facets in post-9/11 TBI claims are Memory/Attention (#1), Subjective Symptoms (#7), and Neurobehavioral Effects (#8) — particularly when TBI co-occurs with PTSD, which is extremely common. Veterans should document how their worst facet manifests in daily life: specific incidents, failed tasks, relationship disruptions, and work failures all constitute evidence.

Rating Levels: 0%, 10%, 40%, 70%, 100%

Under DC 8045, the cognitive/behavioral TBI rating percentages map to the facet level system as follows:

2026 Monthly Pay Rates for TBI

These are the 2026 VA disability compensation rates for a veteran with no dependents. Veterans with a spouse, dependent children, or a dependent parent receive additional compensation. A veteran rated at 70% TBI with a spouse would receive approximately $2,053.43/month. At 100% with a spouse: approximately $4,152.46/month.

Veterans unable to work due to TBI residuals may qualify for TDIU (Total Disability based on Individual Unemployability), which pays at the 100% rate ($3,938.58/month) even when the combined rating is less than 100%. See the TDIU section below.

Separately Ratable Residuals of TBI

One of the most important — and frequently missed — aspects of TBI claims is that certain residuals are rated separately from the DC 8045 cognitive/behavioral rating. VA policy expressly allows this, and the combined effect can significantly increase total compensation.

Headaches / Migraines (DC 8100)

Post-traumatic headaches are among the most prevalent TBI residuals. If your headaches meet the criteria for migraines under DC 8100, they are rated separately:

• 50% — Prostrating attacks occurring more than once per month over the past several months
• 30% — Prostrating attacks averaging one per month over the past several months
• 10% — Characteristic prostrating attacks less than once per month

Seizure Disorder (DC 8910–8914)

Post-traumatic epilepsy is a recognized TBI residual. Seizure disorders are rated by frequency and severity under DC 8910–8914, ranging from 10% (fewer than one major seizure per two years) to 100% (multiple major seizures per week). The VA/DoD Clinical Practice Guideline for TBI specifically addresses seizure management in TBI patients.

Sleep Apnea Secondary to TBI (DC 6847)

TBI can disrupt the brain's respiratory control centers, alter sleep architecture, and cause pharyngeal muscle dysfunction — all pathways to obstructive or central sleep apnea. Under 38 CFR § 4.97 DC 6847, sleep apnea requiring CPAP is rated at 50%. A nexus letter under 38 CFR § 3.310 connecting the sleep apnea to service-connected TBI is required for secondary service connection.

Vestibular Disorders / Tinnitus

Blast-related TBI frequently damages the vestibulocochlear system. Tinnitus (DC 6260) is rated at 10% (bilateral or unilateral). Balance disorders (DC 6204) can be rated up to 100% depending on severity. These are separately ratable in addition to DC 8045.

Endocrine/Hormonal Disruption

Moderate-to-severe TBI can damage the pituitary gland, causing hypopituitarism, hypogonadism, or growth hormone deficiency. These are rated under the endocrine schedule and are separately ratable from DC 8045. Veterans with unexplained hormonal symptoms after TBI should request an endocrine evaluation.

Secondary Conditions to TBI

Beyond separately ratable residuals, TBI commonly causes or aggravates other diagnosable conditions that may receive their own independent service connection under 38 CFR § 3.310. Secondary service connection requires a medical nexus — typically a physician's opinion stating that the secondary condition is "at least as likely as not" (the 50/50 threshold) caused or aggravated by the service-connected TBI.

PTSD + TBI: Interaction and Pyramiding Rules

The coexistence of PTSD and TBI is the rule rather than the exception for combat veterans. Research shows that 40–50% of veterans with PTSD also have a history of TBI, and symptom overlap is extensive — both conditions produce memory problems, emotional dysregulation, hyperarousal, sleep disruption, and social impairment.

The critical legal issue is 38 CFR § 4.14 (avoidance of pyramiding), which prohibits evaluating the same symptoms under more than one diagnostic code. However, the prohibition is on rating the same symptoms twice — not on rating two different conditions that happen to share some symptom domains.

Practical guidance from BVA decisions and VA adjudication policy:

• If PTSD and TBI are both service-connected, the veteran may receive ratings for both — but VA should not count the same functional impairment toward both ratings
• The shared symptoms (memory, emotional regulation) are typically captured in one rating; distinct symptoms (e.g., trauma-specific avoidance in PTSD vs. disorientation from TBI) may support separate ratings
• PTSD is rated under 38 CFR § 4.130, DC 9411 using the General Rating Formula for Mental Disorders (0/10/30/50/70/100%). TBI is rated under DC 8045 (0/10/40/70/100%). These different rating scales can produce different outcomes for the same veteran
• When the evidence supports a higher rating under either schedule, the veteran is entitled to the more favorable one — VA is required to apply whichever code produces a better result

Veterans with both PTSD and TBI should obtain separate nexus letters addressing each condition independently, and a clinical note explicitly distinguishing which symptoms are attributable to each condition. A PTSD nexus letter is a different document from the TBI DBQ.

Polytrauma Centers and the System of Care

VA's Polytrauma System of Care (PSC) is a nationally designated network of specialized rehabilitation centers for veterans with TBI and co-occurring injuries. It was established in response to the high rates of blast-related TBI in OEF/OIF veterans and operates under VA Handbook 1172.01.

The PSC has four tiers:

• Polytrauma Rehabilitation Centers (PRCs) — Five locations: Minneapolis MN, Palo Alto CA, Tampa FL, Richmond VA, San Antonio TX. Highest level of specialized acute and post-acute TBI rehabilitation. Full neuropsychological assessment capabilities.
• Polytrauma Network Sites (PNS) — One per VISN (VA Integrated Service Network), providing outpatient evaluation and treatment coordination for veterans who cannot access PRCs
• Polytrauma Support Clinic Teams (PSCTs) — Located at individual VA medical centers; focused on follow-up care and chronic management
• Polytrauma Points of Contact (PPOCs) — Available at every VA facility; coordinate care and referrals for veterans with TBI symptoms

For VA disability claim purposes, evaluation at a Polytrauma Center is particularly valuable because it provides:

• Comprehensive neuropsychological testing across all 10 DC 8045 facets
• Functional assessments by occupational therapists, speech-language pathologists, and physiatrists
• Standardized documentation in formats consistent with DBQ 8045 requirements
• Team-based evidence that carries significant weight with VA raters

To request a Polytrauma evaluation, contact your VA primary care team or patient advocate. Veterans do not need a TBI rating to access Polytrauma services — suspected TBI symptoms are sufficient for a referral.

Neuropsychological Testing for TBI Claims

Neuropsychological testing provides the most objective, quantified evidence available for TBI disability claims. Performed by a licensed neuropsychologist, a comprehensive battery typically includes:

• Wechsler Adult Intelligence Scale (WAIS-IV) — Processing speed, working memory, perceptual reasoning, verbal comprehension
• Wechsler Memory Scale (WMS-IV) — Auditory and visual memory, immediate and delayed recall
• Trail Making Test A & B — Processing speed, cognitive flexibility, executive function
• California Verbal Learning Test (CVLT-II) — Verbal learning, memory consolidation, recognition
• Rey-Osterrieth Complex Figure Test — Visual-spatial ability and visual memory
• Controlled Oral Word Association Test (COWAT) — Verbal fluency and executive function
• Stroop Color-Word Test — Response inhibition, cognitive interference
• Symptom Validity Tests (SVTs) — Performance validity measures to establish test credibility

Test scores are compared to age-matched normative data, producing T-scores and percentiles that directly map to DC 8045 facet impairment levels. A neuropsychologist's report that translates test findings into the 10-facet framework is among the most persuasive evidence a TBI veteran can provide.

If VA's C&P exam did not include neuropsychological testing, or if it included only a brief mental status exam rather than a full battery, you have strong grounds for an inadequate C&P exam argument — and should consider obtaining independent neuropsychological testing through a private provider. This is an appropriate use of a nexus letter / independent medical opinion.

Combat Veterans and Proof of TBI

Combat veterans face a specific evidentiary challenge: TBI events during combat often occur in chaotic circumstances where medical care is unavailable, injury events are not formally documented, and service treatment records are incomplete. VA regulations address this in several ways:

38 CFR § 3.304(f) — Combat-related conditions: For conditions that are consistent with the circumstances of service in combat, VA may grant service connection even without direct medical evidence of the in-service event, when the veteran's lay statements are credible and consistent with combat service.

VA Fast Letter 10-35 (2010) — Clarified that TBI can be service-connected based on lay statements describing the in-service event (blast exposure, vehicle accident, fall) when consistent with the veteran's deployment history.

Buddy statements — Statements from fellow service members who witnessed the traumatic event under 38 CFR § 3.303 constitute lay evidence that VA is required to weigh. A buddy statement describing a blast event, vehicle rollover, or impact incident is often the primary evidence of a TBI event in OEF/OIF veterans.

Unit records — Significant Activity Reports (SIGACTs), unit after-action reports, and deployment records that document the veteran's presence in combat or during specific events can corroborate lay evidence of TBI.

The PACT Act (Public Law 117-168, 2022) also expanded toxic exposure presumptives that may apply to veterans who served in environments where blast TBI was common. Veterans who served at locations on the PACT Act burn pit registry and have TBI should review whether any PACT Act presumptive conditions interact with their TBI claim.

C&P Exam Strategy for TBI

The Compensation and Pension (C&P) exam for TBI is one of the most consequential VA medical appointments a veteran will have. The examiner completes DBQ 8045 (TBI Disability Benefits Questionnaire), which directly determines your rating level on each of the 10 facets.

Before the Exam

• Review the DC 8045 facet criteria and know which facets are most impaired for you
• Prepare written notes about specific incidents where each affected facet caused problems — specific dates, events, and consequences, not general descriptions
• Bring a family member or caregiver who can corroborate your symptoms and add context the examiner might miss
• List all medications, especially those for cognitive symptoms, mood, sleep, or pain
• Obtain and review all prior neuropsychological testing results and bring copies

During the Exam

• Describe your worst days, not your average days — VA rates the full spectrum of impairment, not just typical function
• For each facet, describe specifically how the impairment manifests: "I forgot my wife's birthday twice this year," "I got lost driving to a store I've been to 50 times," "I screamed at my coworker for asking a simple question"
• Do not minimize symptoms to appear functional — the examiner's role is to document impairment accurately
• Ask the examiner to note all symptoms, not just the most obvious ones

After the Exam

• Request a copy of the DBQ from the examiner or through MyHealtheVet after your appointment
• Review each facet for accuracy — if the examiner's documentation understates your impairment, this is grounds for a supplemental claim with new evidence or an appeal arguing inadequate examination
• If the C&P exam is inadequate (failed to consider all 10 facets, omitted neuropsychological testing when warranted, relied on a brief mental status rather than full assessment), submit a Notice of Disagreement to request a new examination

TDIU for TBI Veterans

Many TBI veterans with ratings of 40% or 70% are unable to maintain substantially gainful employment due to their TBI residuals — cognitive impairments that make sustained work impossible, behavioral dysregulation that causes workplace incidents, or physical residuals that prevent sustained activity. These veterans may qualify for Total Disability based on Individual Unemployability (TDIU).

Under 38 CFR § 4.16(a), schedular TDIU requires:

• A single service-connected disability rated at 60% or higher, OR
• Two or more service-connected disabilities with a combined rating of 70% or higher, with at least one disability rated at 40% or higher

A TBI veteran rated at 70% under DC 8045 who cannot work meets the single-disability threshold. A veteran rated at 40% TBI + 40% PTSD (combined = 64%, rounded to 64%) does not automatically meet schedular criteria, but may qualify for extraschedular TDIU under 38 CFR § 4.16(b) with referral to the Director of Compensation Service.

In 2026, TDIU pays $3,938.58/month (single veteran, no dependents) — the full 100% rate. Filing VA Form 21-8940 initiates the TDIU adjudication process. Veterans should also submit vocational assessments and employer statements documenting how TBI residuals prevent employment.

TBI Evidence Checklist

A complete TBI claim package should include:

• ☐ VA Form 21-526EZ — Initial claim or supplemental claim form
• ☐ Service treatment records — Documents of in-service head injury, concussion, or blast exposure
• ☐ DBQ 8045 — Completed by a qualified physician (private or VA), documenting all 10 facets
• ☐ Neuropsychological testing report — Full battery with facet-level analysis (most powerful evidence)
• ☐ Buddy statements — From fellow service members who witnessed the injury event or its aftermath
• ☐ Personal statement — Your own narrative describing the TBI event and each affected facet with specific examples
• ☐ Secondary condition nexus letters — Linking headaches, sleep apnea, depression, anxiety to service-connected TBI under 38 CFR § 3.310
• ☐ Employment evidence — Job termination records, performance reviews, employer statements documenting TBI-related work difficulties
• ☐ VA Form 21-8940 — If applying for TDIU
• ☐ Polytrauma evaluation records — If you've been evaluated at a VA Polytrauma Center

Related guides that support TBI claims:

• VA Sleep Apnea Rating Guide — Secondary to TBI pathway
• Nexus Letter: Sleep Apnea Secondary to TBI
• VA Headache/Migraine Rating Guide (DC 8100)
• How to Write a Buddy Statement
• TDIU Evidence Guide
• VA PTSD Rating Guide
• Independent Medical Opinions for VA Claims
• C&P Exam Preparation Tips

Frequently Asked Questions