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Encephalitis Residuals VA Disability Rating

Diagnostic code 8000
By the editorial deskUpdated Jun 13, 2026Sources verified Jun 13, 2026
Quick summary
Encephalitis is rated under diagnostic code 8000 at 100 percent while the infection is active and febrile, then on residuals with a minimum rating of 10 percent. Residuals such as seizures, cognitive impairment, weakness, and personality change are rated under their own codes and combined.
Key requirements
  • Service connection requires a current diagnosis, an in-service event or exposure, and a medical link (nexus) between the two.
  • VA assigns ratings of 10% to 100% under diagnostic code 8000, using the criteria in the rating table below.
  • The percentage assigned turns on Active disease and residuals.
  • Measured at the C&P exam: Neurological exam: motor, sensory, reflexes.
VA also uses diagnostic code 8000 for Cerebellar Ataxia. Those are distinct conditions with their own pages. This page covers Encephalitis Residuals specifically.
This page explains common evidence VA may consider when rating this condition. It is not medical advice and does not diagnose any condition. Talk with a licensed medical professional about diagnosis and treatment, and with a VA accredited representative (38 CFR 14.629) about a specific claim.
Ratings
10% to 100%
Diagnostic code
8000
Decided on
Active disease and residuals
Measured by
Neurological exam: motor, sensory, reflexes
The five parts of a compensation decisionA current disabilityAn in service eventA connectionSeverity under the criteriaAn effective dateHow the pieces fit together
RatingCriteria
100%Active febrile disease.
10%Minimum rating for residuals. Each residual (seizures, cognitive impairment, motor deficits, mental health changes) is rated under its own code and combined.
Rule: 38 CFR 4.124a, DC 8000Source: eCFR, Title 38 Part 4Verified: 2026-06-13Change history: no criteria change recorded since publicationEach percentage links to itself; cite with the anchor.

Illustrative scenarios showing how the criteria above are applied. These are educational examples, not a prediction of any individual veteran's rating.

Active febrile disease

Illustrates 100%

Situation. Encephalitis is in its active, febrile phase.

How the criteria apply. Active febrile encephalitis rates 100 percent under DC 8000.

Minimum rating for residuals

Illustrates 10%+

Situation. After the active phase, residuals such as seizures, cognitive changes, or motor deficits remain.

How the criteria apply. Residuals carry a minimum 10 percent rating, with each residual (seizures, cognition, motor, mood) rated under its own code and combined (DC 8000).

How this is examined. Peripheral nerve ratings in 38 CFR 4.124a turn on the degree of paralysis of the nerve involved: mild, moderate, moderately severe, or severe incomplete paralysis, or complete paralysis with the specific findings listed for that nerve. The examiner grades this from motor strength, muscle atrophy, reflexes, and sensory testing, often supported by a nerve conduction study or EMG. When the involvement is wholly sensory, the rating is for the mild or at most the moderate degree. A goniometer measures joint motion for the separate spine or joint rating; it does not determine the nerve percentage. Read 38 CFR 4.124a

The brain infection itself is 100 percent while active. What matters afterward is the honest inventory of what changed: memory, seizures, mood, movement.

What VA looks at

The hospitalization record of the acute infection, the organism where identified, and neuropsychological and neurological residuals.

Common exam and DBQ topics

The acute illness, memory and concentration now, seizures, mood and personality change.

Evidence that usually matters

Hospital records, lumbar puncture and imaging results, neuropsychological testing, statements from family on changes.

Common misunderstandings

West Nile encephalitis connects to the Gulf War infectious disease presumption for qualifying service. Cognitive residuals deserve formal neuropsychological testing, not a screening question.

If a VA decision on this came back wrong

You have three review lanes, pick the one that fits the situation.

Under the Appeals Modernization Act (38 CFR 3.2500), a Higher Level Review or a Board Appeal must be requested within one year of the decision notice. A Supplemental Claim can generally be filed at any time after the decision, but filing any of the three within that one year window is what keeps the claim continuously pursued and protects the original effective date; wait longer and a later award may start from the new filing date instead.

Related conditions

Background reading

Supplemental articles that connect to this condition.

State benefits stack with VA disability

Your rating may also qualify you for state-level benefits.

VA compensation is federal, but every state layers its own benefits on top. Many states reduce or waive property tax for disabled veterans, and many offer license, tuition, or vehicle benefits at various rating levels. The thresholds, dollar amounts, and eligibility rules vary widely from state to state, so the reliable answer is always your own state's guide.

See your state's benefitsReviewed quarterly

Put this rating to work

Free calculators and a guide to turn a rating percentage into real numbers. Your figures stay on your device unless you ask us to email an estimate.

Secondary conditions and case specific outcomes are fact specific. We do not tell you what claims to file. Consider talking with a VA accredited representative.
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Editor's note

Most recent human review on this page, July 5, 2026. Below is the review history across this page, its citations, and the supplemental articles it links to.

  1. July 5, 2026articleAppealing or Continuing a VA Decision: The Three Lanes Under the AMA
  2. July 5, 2026articleThe C&P Exam: What to Expect and How to Prepare
  3. June 13, 2026conditionThis page
  4. June 13, 2026citation38 CFR Part 4 Schedule for Rating Disabilities
Printed from The Veteran Benefit Desk, https://veteranbenefitdesk.com/conditions/encephalitis-residuals. Figures reflect this page as published. Rates change each December; confirm current amounts at veteranbenefitdesk.com before relying on them.
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