Peripheral Neuropathy VA Rating: How the VA Evaluates Nerve Damage

Peripheral neuropathy is damage to the nerves outside the brain and spinal cord. It usually starts in the longest nerves, which is why the first symptoms are numbness, burning, or pins and needles in both feet, later spreading to the hands in the stocking-and-glove pattern clinicians describe.

Unlike radiculopathy, which follows a single nerve root, neuropathy is typically symmetric and systemic. That difference shapes both how it is service connected and how it is rated.

How peripheral neuropathy is rated

There is no single neuropathy code. The VA rates the affected nerve under 38 CFR 4.124a, most often the sciatic nerve at Diagnostic Code 8520, the external popliteal nerve at 8521, or the posterior tibial nerve at 8525 in the legs, and the median nerve at 8515 or the ulnar nerve at 8516 in the arms.

Each extremity is rated separately, so a veteran with neuropathy in both feet and both hands can hold four evaluations that combine under 38 CFR 4.25. Our diagnostic codes guide lists the percentages for each nerve.

The wholly sensory ceiling matters here

Most neuropathy claims begin as sensory only, and the note in 38 CFR 4.124a limits wholly sensory involvement to mild, or at most moderate, incomplete paralysis. That is why so many neuropathy grants come in at 10 or 20 percent per extremity.

Progression changes the picture. Weakness on muscle testing, absent ankle reflexes, loss of balance, foot drop, or measurable atrophy support higher levels. Neuropathy is also a progressive condition in many veterans, so an increased rating claim later is often appropriate; our guide on nexus letters and increased rating claims covers how that works.

Neuropathy secondary to diabetes

The most common path to service connection is secondary. Under 38 CFR 3.310, a condition caused or aggravated by an already service-connected disability is service connected in its own right, and peripheral neuropathy is a recognized complication of diabetes mellitus.

When diabetes is already service connected, the opinion supporting a neuropathy claim needs to establish the diagnosis, the distribution of the findings, and the medical reasoning tying the neuropathy to the diabetes rather than to another cause. Our secondary service connection guide explains the standard, and the medication side effects guide covers the related route where treatment rather than the underlying disease causes the harm.

Early-onset peripheral neuropathy and herbicide exposure

Early-onset peripheral neuropathy appears on the list of diseases associated with herbicide exposure in 38 CFR 3.309(e). For veterans with qualifying exposure, that presumption removes the need to prove a medical link, provided the condition meets the regulatory requirements for onset and manifestation.

Exposure claims have their own documentation issues. Our burn pit and toxic exposure guidance in the skin series discusses how exposure claims are evidenced, and the VA's Agent Orange page listed below sets out eligibility.

Other causes the VA will weigh

Neuropathy has many causes: diabetes, alcohol use, vitamin B12 deficiency, chemotherapy, kidney disease, thyroid disease, and idiopathic cases where no cause is found. A rater who sees an alternative explanation in the record and no discussion of it will often deny.

That is precisely the work a well-reasoned medical opinion does. It does not ignore the alternatives; it addresses them and explains why service or the service-connected condition remains at least as likely as not the cause. Our guide on the at least as likely as not standard explains the threshold.

Where to go next

Read the C&P exam guide before your appointment and the evidence guide for what belongs in the file. If neuropathy affects your balance and your feet, our feet and lower legs series covers the related conditions, and the pillar guide explains how nerve ratings fit alongside everything else in a claim.