Sciatic Radiculopathy (Lower Extremity)
Sciatic radiculopathy is nerve pain, numbness, tingling, or weakness radiating from the low back down the leg, usually caused by a spine condition pressing on the sciatic nerve root. VA rates it per leg based on how severe the nerve impairment is.
How the VA rates it
Rated under DC 8520 (sciatic nerve) as complete paralysis or incomplete paralysis at mild, moderate, moderately severe, or severe levels. Each leg is rated separately in addition to the underlying spine rating, and if both legs are affected the bilateral factor applies. When symptoms are wholly sensory (pain, numbness, tingling with no weakness), VA rates at the mild or at most moderate level.
Rating criteria by percentage
Rated up to 80%Complete paralysis: the foot dangles and drops, no active movement possible of muscles below the knee, and knee flexion is weakened or (very rarely) lost.
Severe incomplete paralysis, with marked muscular atrophy.
Moderately severe incomplete paralysis.
Moderate incomplete paralysis.
Mild incomplete paralysis.
What those terms mean
- flexion
- — Bending the joint (e.g., bending your knee or leaning forward).
Secondary condition strategy
Commonly claimed secondary to this
Conditions veterans often develop from this one — each can be its own rating under 38 CFR 3.310.
- Major Depressive Disorder — Depression is commonly claimed secondary to chronic radicular pain and the functional limits it imposes.
This is often secondary to
If you already have one of these service-connected, it may support connecting this condition.
- Lumbosacral Strain — Radiculopathy is the classic secondary (or associated neurologic abnormality) of chronic low back conditions.
- Degenerative Disc Disease — Disc degeneration compressing nerve roots is a leading cause of sciatic radiculopathy.
- Intervertebral Disc Syndrome (IVDS) — Herniated or bulging discs commonly cause sciatic nerve root compression.
Evidence that strengthens this claim
- An EMG/nerve conduction study is the strongest objective evidence of radiculopathy and of which nerve is involved.
- Document motor findings, not just pain: foot drop, weakness on heel/toe walk, muscle atrophy, and diminished reflexes push ratings above the mild level.
- Make sure your spine C&P exam records radiating symptoms into each leg - the spine formula requires VA to rate associated neurologic abnormalities separately.
- If both legs are affected, claim both - separate ratings for each leg combine with the bilateral factor.
Rating rules to know
Rated separately from, and in addition to, the orthopedic spine rating - but the same neurologic symptoms cannot be rated under both 8520 and another nerve code for the same leg. Under the IVDS formula, incapacitating episodes are an alternative to separate orthopedic-plus-neurologic ratings, whichever is higher.
Related diagnostic codes
More neurological conditions
Migraine Headaches
Migraines are recurring severe headaches, often with nausea and light sensitivity. VA rates them entirely on how often you have 'prostrating' attacks - attacks so severe you must stop what you are doing and lie down.
Rated up to 50%
Peripheral Neuropathy
Peripheral neuropathy is nerve damage in the feet, legs, or hands causing burning pain, numbness, tingling, and weakness - most often from diabetes. There is no single diagnostic code: VA rates each affected nerve in each extremity separately.
Rated up to 80%
Upper Extremity Radiculopathy (Cervical Radiculopathy)
Cervical radiculopathy is pain, numbness, tingling, or weakness radiating from the neck into the shoulder, arm, or hand from a compressed nerve root. VA rates it per arm, with higher percentages for your dominant (major) arm.
Rated up to 70%
Carpal Tunnel Syndrome
Carpal tunnel syndrome is compression of the median nerve at the wrist, causing numbness, tingling, and weakness in the hand. VA rates it per wrist under the median nerve code, with higher percentages for your dominant hand.
Rated up to 70%
Traumatic Brain Injury (TBI) Residuals
TBI residuals are the lasting effects of a head injury - problems with memory, concentration, mood, headaches, dizziness, and more. VA rates TBI with a unique facet-based system where your single worst area of impairment sets the rating.
Rated up to 100%
Seizure Disorder (Epilepsy)
Epilepsy and other seizure disorders are rated on how often you have seizures. Major (grand mal / tonic-clonic) seizures with loss of consciousness count for more than minor seizures, and a confirmed diagnosis guarantees at least 10 percent.
Rated up to 100%
Disclaimer: Valor Rating is not affiliated with the U.S. Department of Veterans Affairs. This content is for educational purposes only and does not constitute legal or medical advice. Always review your documents carefully before submitting to the VA. For official guidance, consult an accredited VSO, claims agent, or attorney.