How the VA Rates Carpal Tunnel Syndrome
The VA rates carpal tunnel syndrome (CTS) under Diagnostic Code 8515 (38 CFR Part 4), which covers paralysis or neuritis of the median nerve. Ratings of 10%, 20%, or 30% are assigned based on whether symptoms are mild, moderate, or severe — and whether the affected hand is your dominant or non-dominant hand.
Diagnostic Code 8515 — Median Nerve
DC 8515 covers incomplete paralysis of the median nerve, which runs through the carpal tunnel in the wrist. The VA uses this code because CTS compresses the median nerve, causing the characteristic symptoms.
- Mild (10%): Tingling, numbness, or mild hand weakness. Symptoms are intermittent and do not significantly limit daily activities.
- Moderate (20%): More frequent sensory loss, grip weakness, and pain that interferes with fine motor tasks like typing or gripping tools.
- Severe (30%): Persistent numbness, muscle wasting (thenar atrophy), significant grip-strength loss, and marked functional impairment.
The dominant hand is rated one step higher on the severity scale than the non-dominant hand under the same facts. So a veteran with moderate CTS in the dominant hand may reach the 20% threshold more easily than one with the same symptoms in the non-dominant hand.
Dominant vs. Non-Dominant Hand
The VA distinguishes between the dominant (major) and non-dominant (minor) hand because the dominant hand is more functionally critical. This distinction can affect your rating in two ways.
- The C&P examiner will ask which hand is dominant. Your answer is documented in the DBQ.
- For bilateral CTS (both hands), the VA rates each hand separately and then applies the bilateral factor — a 10% addition to the combined value of both ratings before combining with other disabilities.
Electrodiagnostic Evidence: Nerve Conduction Studies
Nerve conduction velocity (NCV) testing and electromyography (EMG) are the gold-standard evidence for CTS claims. These tests measure how fast electrical signals travel through the median nerve.
- A slowed nerve conduction velocity at the wrist confirms CTS diagnosis (ICD-10 G54.2 covers cervical root disorders; CTS itself maps to G56.0).
- The VA rater uses NCV results to distinguish mild from moderate or severe impairment.
- If you do not have NCV testing in your records, request a private study before filing. A diagnosis without electrodiagnostic confirmation weakens your claim.
Nexus: How to Connect CTS to Military Service
To win service connection, you must show that your CTS began in or was caused by military service. The most common nexus arguments for veterans are repetitive motion tasks performed in their Military Occupational Specialty (MOS).
- Repetitive hand/wrist use: Clerks, mechanics, radio operators, cooks, and computer operators perform repeated wrist flexion and extension — a direct mechanical cause of CTS.
- Heavy equipment vibration: Exposure to vibrating tools or vehicles (tanks, helicopters, chainsaws) compresses the median nerve over time.
- In-service diagnosis: If your STRs mention CTS, hand numbness, or wrist complaints, that is direct service connection evidence.
- Continuity of symptom statements: Describe in your personal statement how symptoms started during service and never fully resolved.
Secondary CTS From Neck Conditions
Cervical spine (neck) conditions can cause or aggravate CTS through nerve root compression at the C6–C7 level, which shares the median nerve pathway. If you have a service-connected neck condition, you may be able to establish secondary service connection for CTS.
- A nexus letter from a neurologist or orthopedic specialist is particularly persuasive for secondary CTS claims.
- The doctor should state that the cervical condition "at least as likely as not" caused or worsened the carpal tunnel compression.
- Double-crush syndrome — where the nerve is compressed at both the neck and the wrist — is a recognized medical concept that supports this argument.
What to Expect at Your C&P Exam
Your C&P examiner will use the Disabilities Benefits Questionnaire (DBQ) for peripheral nerves to document your CTS. Here is what to prepare for.
- The examiner will test grip strength with a dynamometer. Squeeze as hard as you can — but be honest about pain limitations.
- Tinel's sign (tapping the wrist) and Phalen's test (wrist flexion for 60 seconds) are common clinical tests. Report if either causes tingling or numbness.
- Describe symptom frequency: do symptoms occur only at night, or all day? Daytime symptoms suggest more severe impairment.
- Mention any thenar muscle wasting (muscle loss at the base of the thumb) — this indicates severe CTS.
- If you had carpal tunnel surgery, report whether symptoms improved or persisted. Residual symptoms after surgery are still ratable.
2026 Monthly Compensation Amounts
A 10% VA rating for carpal tunnel pays $175.51 per month (2026 rate, single veteran with no dependents). A 20% rating pays $347.05/month and a 30% rating pays $538.37/month. Rates increase with dependents and additional disabilities in your combined rating.
Use our VA disability rating calculator to see how CTS interacts with your other conditions. For a full explanation of how ratings are combined, visit our VA disability rating explained guide, or browse all rated conditions at VA disability.