★ Neurological
Carpal Tunnel Syndrome VA Rating
38 CFR § 4.124a, Diagnostic Code 8515
Overview
Carpal tunnel is one of the most common upper-extremity nerve claims.
EMG/NCS testing is the gold standard for confirming severity.
Each hand is rated separately, with the bilateral factor applied if both are service-connected.
In Depth
Carpal tunnel syndrome is evaluated as a peripheral nerve disability under 38 CFR § 4.124a, most commonly under DC 8515 for paralysis of the median nerve, with DC 8615 for neuritis and DC 8715 for neuralgia of the same nerve. The tiers distinguish complete paralysis from incomplete paralysis at severe, moderate, and mild levels.
The percentage tiers under DC 8515 differ for the major (dominant) and minor (non-dominant) extremity, so hand dominance is a rating factor. VA presumes right-hand dominance absent evidence to the contrary.
A note preceding the peripheral-nerve codes in § 4.124a provides that when the involvement is wholly sensory, the rating should be for the mild, or at most the moderate, degree. This is why objective findings — strength testing, atrophy, and nerve-conduction results — carry weight distinct from reported numbness alone.
How to Establish Service Connection
- Direct: documented in-service repetitive use, wrist injury, or symptoms.
- Secondary: aggravated by neck/cervical spine condition or hypothyroidism.
Rating Criteria
Paraphrased from 38 CFR § 4.124a, Diagnostic Code 8515
| Rating | Criteria |
|---|---|
| 10% | Mild incomplete paralysis. |
| 20% / 30% | Moderate incomplete paralysis (20% non-dominant / 30% dominant). |
| 40% / 50% | Severe incomplete paralysis (40% non-dom / 50% dom). |
| 60% / 70% | Complete paralysis (60% non-dom / 70% dom). |
See what each percentage pays in 2026 and how it combines with your current rating →
Evidence Checklist
- EMG/nerve conduction study.
- Documentation of dominant hand.
- Treatment notes (splints, injections, surgery).
Evidence Templates
Common formats of evidence the VA looks for in this type of claim. These describe what the documents typically include — they are not legal forms or medical opinions, and Oakridge Claims does not draft them.
Nerve conduction study / EMG report
Electrodiagnostic testing identifying the affected nerve and the degree of conduction impairment. Frequently referenced in evaluations under the peripheral-nerve codes at 38 CFR § 4.124a.
Neurologic examination findings
Clinical documentation of sensory testing, strength, reflexes, and any muscle atrophy — the findings the incomplete-paralysis tiers describe.
Operative report (carpal tunnel release)
Surgical record establishing the procedure and date, along with post-surgical residual findings.
Evidence VA Commonly Cites in These Claims
Descriptive summary of evidence types frequently referenced in rating decisions for this condition. Not a checklist of actions to take — every claim is decided on its own facts.
- ★Nerve conduction studies or EMG results objectively identify median-nerve involvement and severity, which is what the incomplete-paralysis tiers are applied to.
- ★Examination findings on grip strength, thenar atrophy, and sensory testing address whether involvement is wholly sensory under the § 4.124a note.
- ★Bilateral involvement is evaluated for each extremity, and 38 CFR § 4.26 addresses the bilateral factor when both upper extremities are service connected.
- ★Where carpal tunnel is claimed as secondary to a service-connected cervical spine or endocrine condition, a clinician's documented assessment of that relationship is what § 3.310 addresses.
Common pitfalls VA sees
- Not establishing hand dominance in the record when the code's tiers differ by extremity.
- Relying on symptom reports without any objective nerve study, given the wholly-sensory note in § 4.124a.
- Assuming a successful release surgery ends the claim, when residual findings are what the code is applied to.
Common Secondary Conditions
Conditions frequently service-connected as secondary to Carpal Tunnel Syndrome:
Frequently Asked Questions
Have a Carpal Tunnel Syndrome claim or denial?
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Educational content only — not legal advice and not medical advice. Rating criteria on this page are summarized in plain English from 38 CFR Part 4; consult VA.gov or the current Code of Federal Regulations for official criteria. This page provides general education about how the VA rates this condition; it is not individualized advice, does not establish a representation relationship, and should not be used to self-diagnose, self-treat, or decide a course of action without speaking to a qualified clinician and a VA-accredited representative. Outcomes depend on each veteran's individual facts, evidence, and the adjudicator's judgment; no specific rating, effective date, or other result is guaranteed. Oakridge Claims is a private business and is not affiliated with, endorsed by, or operated by the US Department of Veterans Affairs.