Median Nerve Paralysis (Carpal Tunnel Advanced)

DC 8515Neurological38 CFR 4.124a, DC 8515

Paralysis or severe dysfunction of the median nerve, which controls sensation and movement in the thumb, index, middle, and part of the ring finger. Advanced cases go beyond typical carpal tunnel symptoms to include significant muscle wasting and loss of hand function. The dominant (major) hand receives higher ratings at moderate and above levels. Complete paralysis produces the classic "ape hand" deformity with inability to make a fist.

How the VA rates this condition

The VA rates this condition based on how much it affects your ability to work and carry out daily activities. The examiner will focus on the functional limitations your condition causes, not just the diagnosis itself.

Diagnostic code

DC 8515

Rating range

10% – 60%

Rating levels

Rating criteria are defined in 38 CFR 4.124a, DC 8515. This guide presents a plain-language summary and is not a substitute for the full regulatory text. Always consult a VSO or VA-accredited attorney for case-specific advice.

Rating Levels

You have complete paralysis of the median nerve in your non-dominant (minor) hand. If it is your dominant hand, the rating is 70%. The hand has the "ape hand" deformity and you cannot make a fist.

What the VA looks for

Complete loss of median nerve function
Ape hand deformity documented
Inability to make a fist or oppose thumb
Severe thenar eminence atrophy with measurements
Trophic skin changes in median nerve distribution

Common Pitfalls

⚠Not specifying which hand is dominant — the VA assigns higher ratings for the dominant (major) hand at moderate, severe, and complete paralysis levels. Always state your handedness clearly.
⚠Not getting EMG and nerve conduction studies — these are the most important objective tests for documenting the severity of median nerve damage and distinguishing mild from moderate or severe.
⚠Not filing each hand separately — if both hands are affected, each is rated independently and both contribute to your combined rating.
⚠Not documenting functional limitations with specific examples — difficulty writing, opening jars, buttoning clothes, and handling tools all demonstrate how the condition affects your daily life and work.

Related DBQ Forms

DBQ Peripheral Nerves Conditions

View evidence checklist →See secondary conditions →

Condition Rating Guides

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Median Nerve Paralysis (Carpal Tunnel Advanced)

How the VA rates this condition

Diagnostic code

DC 8515

Rating range

10% – 60%

Rating levels

Rating Levels

You have complete paralysis of the median nerve in your non-dominant (minor) hand. If it is your dominant hand, the rating is 70%. The hand has the "ape hand" deformity and you cannot make a fist.

What the VA looks for

Complete loss of median nerve function
Ape hand deformity documented
Inability to make a fist or oppose thumb
Severe thenar eminence atrophy with measurements
Trophic skin changes in median nerve distribution

Common Pitfalls

⚠Not specifying which hand is dominant — the VA assigns higher ratings for the dominant (major) hand at moderate, severe, and complete paralysis levels. Always state your handedness clearly.

⚠Not getting EMG and nerve conduction studies — these are the most important objective tests for documenting the severity of median nerve damage and distinguishing mild from moderate or severe.

⚠Not filing each hand separately — if both hands are affected, each is rated independently and both contribute to your combined rating.

⚠Not documenting functional limitations with specific examples — difficulty writing, opening jars, buttoning clothes, and handling tools all demonstrate how the condition affects your daily life and work.