Neurological Conditions and Convulsive Disorders§ 4.124aUpdated
Rating criteria

VA Diagnostic Code 8103Tic, convulsive

Rated from 0% to 30% under § 4.124a. Here is what the VA requires at each level.

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The ladder

What each rating requires

The VA assigns the highest level your evidence actually supports. Read up the stack until your records stop matching.

  1. 30%

    Severe

  2. 10%

    Moderate

  3. 0%

    Mild

From the schedule

Notes on this code

These notes are part of the regulation. They change how the levels above are applied.

  • Note: Depending upon frequency, severity, muscle groups involved.

Convulsive Tic (Diagnostic Code 8103)

Understanding how the VA rates a convulsive tic disorder under the disability rating schedule.

What This Condition Is

A convulsive tic is a neurological condition involving involuntary muscle movements. Under the VA rating schedule, it is classified within Neurological Conditions and Convulsive Disorders and evaluated under Diagnostic Code 8103 (38 CFR § 4.124a).

Available Rating Levels

The VA assigns a disability rating based on the overall severity of the condition. For convulsive tic, the following rating levels are available:

RatingSeverity
30%Severe
10%Moderate
0%Mild

A 0% (noncompensable) rating means the condition is recognized as service-connected but is rated at the mild level.

What the VA Looks For

When rating a convulsive tic, the VA evaluates the condition based on:

  • Frequency of the tics
  • Severity of the tics
  • Muscle groups involved

These factors together help determine whether the condition is rated as mild, moderate, or severe.


This information is drawn from the VA rating schedule (38 CFR § 4.124a, Diagnostic Code 8103) and is provided for general informational purposes. Individual ratings depend on the specific evidence in each case.

These criteria are a rendering of § 4.124a, diagnostic code 8103. The official version is the one that governs your rating.

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What next

How to claim this

Knowing the criteria is the first half. Getting your file to show them is the second.

  1. Find your level in the stack

    Read each rung against what your medical records already say. The level your records document today is the one the VA can support today.

  2. Name the gap

    Look at the rung above yours and write down exactly what it asks for that your file does not show yet — a diagnosis, a measurement, a prescribed brace, a doctor’s opinion linking it to service.

  3. Claim it by code

    File under diagnostic code 8103 and attach the evidence for the level you are asking for. Other Neurological Conditions and Convulsive Disorders codes may cover your secondary conditions.

Find out which rating your evidence supports.

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