Neurological Conditions and Convulsive Disorders§ 4.124aUpdated
Rating criteria

VA Diagnostic Code 8512Paralysis of:

Rated from 20% to 70% under § 4.124a. Here is what the VA requires at each level.

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What each rating requires

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  1. 70%60% non-dominant

    Complete; all intrinsic muscles of hand, and some or all of flexors of wrist and fingers, paralyzed (substantial loss of use of hand)

  2. 50%40% non-dominant

    Incomplete: Severe

  3. 40%30% non-dominant

    Incomplete: Moderate

  4. 20%20% non-dominant

    Incomplete: Mild

From the schedule

Notes on this code

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

  • Note: Combined nerve injuries should be rated by reference to the major involvement, or if sufficient in extent, consider radicular group ratings.

Paralysis of the Lower Radicular Group (VA Diagnostic Code 8512)

Neurological Conditions and Convulsive Disorders — 38 CFR § 4.124a

Understanding This Condition

Diagnostic Code 8512 addresses paralysis affecting the lower radicular group of nerves in the arm and hand. When these nerves are affected, it can impact the intrinsic muscles of the hand as well as the flexors of the wrist and fingers, which may lead to loss of use of the hand.

The VA rates this condition based on whether the paralysis is complete or incomplete, and on the severity of any incomplete paralysis. Ratings also depend on whether the condition affects your dominant (major) or non-dominant (minor) extremity.

Available Rating Levels

The rating levels below reflect increasing severity. The first percentage applies to the dominant (major) extremity; the percentage in parentheses applies to the non-dominant (minor) extremity.

Rating (Major)Rating (Minor)Description
70%60%Complete: all intrinsic muscles of the hand, and some or all of the flexors of the wrist and fingers, paralyzed (substantial loss of use of the hand)
50%40%Incomplete — Severe
40%30%Incomplete — Moderate
20%20%Incomplete — Mild

What the VA Looks For

When evaluating paralysis under Diagnostic Code 8512, the VA considers:

  • Whether the paralysis is complete or incomplete. Complete paralysis involving all intrinsic muscles of the hand, along with some or all of the flexors of the wrist and fingers, may reflect substantial loss of use of the hand.
  • The severity of incomplete paralysis, classified as mild, moderate, or severe.
  • Which extremity is affected, since ratings differ for the dominant (major) versus non-dominant (minor) side.

Important Note on Combined Nerve Injuries

Combined nerve injuries should be rated by reference to the major involvement. If the injury is sufficient in extent, the VA may consider radicular group ratings.


This information is drawn directly from the VA rating schedule under 38 CFR § 4.124a. It is provided for general educational purposes and does not guarantee any particular rating or outcome.

These criteria are a rendering of § 4.124a, diagnostic code 8512. 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 8512 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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