Neurological Conditions and Convulsive Disorders§ 4.124aUpdated
Rating criteria

VA Diagnostic Code 8017Amyotrophic lateral sclerosis

A single 100% rating under § 4.124a. Here is what the VA requires for it.

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  1. 100%

    Amyotrophic lateral sclerosis

From the schedule

Notes on this code

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

  • Note: Consider the need for special monthly compensation.
  • Note: It is required for the minimum ratings for residuals under diagnostic codes 8000-8025, that there be ascertainable residuals. Determinations as to the presence of residuals not capable of objective verification, i.e., headaches, dizziness, fatigability, must be approached on the basis of the diagnosis recorded; subjective residuals will be accepted when consistent with the disease and not more likely attributable to other disease or no disease. It is of exceptional importance that when ratings in excess of the prescribed minimum ratings are assigned, the diagnostic codes utilized as bases of evaluation be cited, in addition to the codes identifying the diagnoses.

Amyotrophic Lateral Sclerosis (ALS) — VA Disability Rating (Diagnostic Code 8017)

Body System: Neurological Conditions and Convulsive Disorders Regulation: 38 CFR § 4.124a, Diagnostic Code 8017


What This Condition Is

Amyotrophic lateral sclerosis (ALS) is a neurological condition rated by the VA under Diagnostic Code 8017, within the category of Neurological Conditions and Convulsive Disorders (§ 4.124a).

Available Rating Level

Under this diagnostic code, the VA provides a single rating level:

RatingCriteria
100%Amyotrophic lateral sclerosis

A diagnosis of amyotrophic lateral sclerosis is evaluated at the 100% level under this diagnostic code.

What the VA Looks For

  • Consideration of Special Monthly Compensation. The rating schedule notes that the need for special monthly compensation should be considered in connection with this condition.

  • Ascertainable residuals for minimum ratings. Across diagnostic codes 8000–8025, the minimum ratings for residuals require that there be ascertainable residuals. For residuals that cannot be objectively verified — such as headaches, dizziness, or fatigability — the VA approaches the determination on the basis of the diagnosis recorded. Subjective residuals will be accepted when they are consistent with the disease and not more likely attributable to another disease or to no disease.

  • Citing diagnostic codes for higher ratings. It is considered exceptionally important that, when ratings above the prescribed minimum are assigned, the diagnostic codes used as the bases of evaluation are cited in addition to the codes identifying the diagnoses.


This information is drawn directly from the VA rating schedule for Diagnostic Code 8017 under 38 CFR § 4.124a. Individual evaluations depend on the specific facts and medical evidence in each case.

These criteria are a rendering of § 4.124a, diagnostic code 8017. 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 8017 and attach the evidence for the level you are asking for. Other Neurological Conditions and Convulsive Disorders codes may cover your secondary conditions.

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