Foot drop is rated under the VA's nerve paralysis codes, most often diagnostic code 8521 for the common peroneal (external popliteal) nerve, which runs 10% to 40%, or diagnostic code 8520 for the sciatic nerve, which runs 10% to 80%. The exact rating depends on whether the VA classifies your nerve damage as mild, moderate, severe incomplete paralysis, or complete paralysis, and on which nerve caused the condition. Most veterans with foot drop rated at the peroneal nerve level land at 20% to 40%, while foot drop tied to sciatic nerve damage from a back injury can reach much higher.
Foot drop happens when the muscles that lift the front of the foot weaken or stop working, causing the foot to drag or slap the ground while walking. In veterans, it's usually the result of nerve damage from combat injuries, vehicle accidents, repetitive stress, diabetes, lumbar spine injuries, or complications from surgery. Because foot drop is a symptom of underlying nerve damage rather than a standalone diagnosis, the VA rates it based on which peripheral nerve is affected and how severely.
How the VA Rates Foot Drop
The VA doesn't have a single "foot drop" diagnostic code. Instead, it rates the nerve condition causing the foot drop under 38 CFR 4.124a, the schedule of ratings for neurological conditions. Three diagnostic codes come up most often in foot drop claims.
| Diagnostic Code | Nerve | Rating Range |
|---|
| DC 8520 | Sciatic nerve | 10% to 80% |
| DC 8521 | Common peroneal (external popliteal) nerve | 10% to 40% |
| DC 8524 | Internal popliteal (tibial) nerve | 10% to 40% |
Within each code, the VA assigns a percentage based on whether the paralysis is incomplete (mild, moderate, or severe) or complete.
DC 8521: Common Peroneal Nerve Ratings
This is the diagnostic code most commonly used for classic foot drop, since the peroneal nerve controls the muscles that dorsiflex the foot (lift the toes and front of the foot upward).
| Severity | Rating | 2026 Monthly Payment (Veteran Alone) |
|---|
| Mild incomplete paralysis | 10% | $180.42 |
| Moderate incomplete paralysis | 20% | $356.66 |
| Severe incomplete paralysis | 30% | $552.47 |
| Complete paralysis (true foot drop) | 40% | $795.84 |
The VA defines complete paralysis under DC 8521 as foot drop with a slight droop of the first toe joints, inability to dorsiflex the foot, loss of extension of the toes, weakened foot abduction, and numbness across the top of the foot and toes. If your foot drop matches this description and is documented by a neurologist or during your VA Compensation and Pension exam, you have a strong case for the 40% rating, the maximum available under this code.
DC 8520: Sciatic Nerve Ratings
When foot drop stems from sciatic nerve damage, often tied to a lumbar spine injury, herniated disc, or sciatica, the VA rates it under DC 8520, which allows for much higher percentages.
| Severity | Rating |
|---|
| Mild incomplete paralysis | 10% |
| Moderate incomplete paralysis | 20% |
| Moderately severe incomplete paralysis | 40% |
| Severe incomplete paralysis, with marked muscular atrophy | 60% |
| Complete paralysis (foot dangles and drops, no active movement below the knee) | 80% |
Complete paralysis of the sciatic nerve is one of the highest single ratings in the entire VA disability schedule. It requires evidence that the leg cannot flex the knee, and that movement of the ankle and foot is lost or nearly lost.
DC 8524: Internal Popliteal (Tibial) Nerve
Less commonly, foot drop or related foot weakness is rated under DC 8524, which tops out at 40% for complete paralysis, characterized by loss of the ability to flex the foot's plantar surface and toes, weakened adduction, and impaired foot movement.
Rating Foot Drop as a Secondary Condition
Many veterans don't file for foot drop on its own. Instead, they claim it as secondary to an already service-connected condition, such as:
- Lumbar spine degenerative disc disease with radiculopathy
- Diabetes mellitus type II with peripheral neuropathy
- A knee or fibular head injury that damaged the nearby peroneal nerve
- Sciatica
If foot drop developed because of a condition the VA already rates you for, a secondary service connection claim can add the peripheral nerve rating on top of your existing rating using VA math (combined ratings, not simple addition). This is often the strongest path for veterans whose foot drop developed years after their original injury or diagnosis.
Evidence That Strengthens a Foot Drop Claim
The VA wants objective medical evidence showing the nerve damage and its functional impact, not just a description of symptoms. Useful evidence includes:
- Nerve conduction studies (NCS) and EMG testing confirming which nerve is affected and how severely
- Neurology treatment records documenting the diagnosis and progression
- Gait analysis or physical therapy notes showing steppage gait, foot slap, or use of an ankle-foot orthosis (AFO)
- A buddy statement from family or fellow service members describing how the condition affects daily function
- A nexus letter from a private physician connecting the foot drop to service or to an already service-connected condition, if the C&P exam result is unclear
At your Compensation and Pension exam, the examiner will test muscle strength, reflexes, and sensation in the affected leg and foot, and note whether you use a brace, cane, or other assistive device. Bring your AFO or brace to the exam if you use one, and be specific about how far you can walk, whether you've fallen, and how the condition limits work and daily tasks.
Foot Drop and TDIU
If foot drop and its underlying nerve condition make it impossible to hold steady, gainful employment, even at a rating below 100%, you may qualify for Total Disability based on Individual Unemployability (TDIU). TDIU pays at the 100% rate. Veterans typically need one condition rated at 60% or more, or a combined rating of 70% with at least one condition at 40%, though the VA can grant TDIU on an extraschedular basis in some cases even when those thresholds aren't met.
How to File a Foot Drop Claim
- Gather medical evidence. Get nerve conduction studies, neurology notes, and any imaging (MRI of the spine or knee, depending on the suspected cause) that documents the nerve damage.
- File your claim. Submit VA Form 21-526EZ through VA.gov, by mail, or with help from an accredited Veterans Service Organization (VSO) representative.
- Attend the C&P exam. The VA will schedule a neurological exam to assess strength, sensation, and functional loss in the affected leg and foot.
- Wait for the rating decision. The VA will issue a decision letter with your assigned diagnostic code and percentage. Average processing time for VA disability claims runs several months, though it varies by regional office and case complexity.
- Appeal if needed. If your rating seems too low given your medical evidence, you can file a Supplemental Claim with new evidence, request a Higher-Level Review, or appeal to the Board of Veterans' Appeals.
Frequently Asked Questions
What is the highest VA rating for foot drop?
The highest rating tied directly to foot drop is 80%, available under diagnostic code 8520 for complete paralysis of the sciatic nerve. If foot drop is caused by peroneal nerve damage alone (DC 8521), the maximum is 40%.
Can foot drop be rated at 100%?
Foot drop alone typically doesn't reach a 100% schedular rating, since the highest single nerve code (DC 8520) caps at 80%. However, veterans whose foot drop and related conditions prevent them from working may qualify for a 100% rating through TDIU (Total Disability based on Individual Unemployability).
Is foot drop a permanent VA disability rating?
Foot drop can be rated as permanent if the VA determines the nerve damage is unlikely to improve, which is common with severe or complete nerve paralysis. Ratings for incomplete or improving paralysis may be scheduled for a future re-examination.
Does the VA rate foot drop and radiculopathy separately?
Sometimes. If foot drop is a direct symptom of radiculopathy from a service-connected spine condition, the VA generally rates the nerve involvement (including foot drop) as part of the radiculopathy rating rather than as two separate disabilities, to avoid pyramiding (double-counting the same symptoms).
What causes foot drop in veterans?
Common causes include lumbar spine injuries with nerve compression, direct trauma to the peroneal nerve near the knee, diabetic peripheral neuropathy, combat-related nerve injuries, and complications from knee or hip surgery.
Do I need a brace or AFO to get a higher rating?
Using an ankle-foot orthosis (AFO) or brace can support your claim by documenting the functional severity of your foot drop, but it isn't required. The rating is based on the degree of nerve paralysis and muscle function loss, not solely on whether you use an assistive device.
