Secondary Condition Claim · VASRD 8520
Paralysis of the Sciatic Nerve Secondary to Amputation of Leg, with Defective Stump
A condition caused or aggravated by an already service-connected disability can be granted its own service connection as a secondary condition under 38 CFR § 3.310. Here's how that works for Paralysis of the Sciatic Nerve when it develops after Amputation of Leg, with Defective Stump.
Why Paralysis of the Sciatic Nerve Is Linked to Amputation of Leg, with Defective Stump
Nerve damage near the stump site
Primary condition · VASRD 5163
Amputation of Leg, with Defective Stump
This code covers a below-knee amputation whose residual limb (stump) is defective enough that re-amputation through the thigh is recommended. What the code turns on is that recommendation, not the amputation level by itself, so documentation of how the stump fails is the core evidence.
Secondary condition · VASRD 8520
Paralysis of the Sciatic Nerve
Damage to the sciatic nerve that causes leg weakness, pain, or paralysis.
Paralysis of the Sciatic Nerve VA Rating Tiers
The VA rates Paralysis of the Sciatic Nerve the same way whether it's claimed directly or as secondary to Amputation of Leg, with Defective Stump — severity of Paralysis of the Sciatic Nerve itself determines the percentage.
| Rating | Criteria |
|---|---|
| 80% | Foot hangs limp and can’t move below the knee due to nerve damage. |
| 60% | Severe weakness and pain in leg with visible muscle loss. |
| 40% | Leg weakness and numbness interfere with walking and standing. |
| 20% | Mild leg weakness or numbness from nerve damage. |
| 10% | Mild nerve issues like tingling or shooting leg pain. |
Example combined rating
60% Amputation of Leg, with Defective Stump + 40% Paralysis of the Sciatic Nerve = 76%
The VA combines ratings with Table I of 38 CFR 4.25, not simple addition — 60% and 40% combine to 76%, not 100%. These figures are illustrative; your actual rating for each condition depends on your own evaluation.
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Evidence for a Paralysis of the Sciatic Nerve Secondary Claim
- •EMG or nerve conduction study showing sciatic involvement
- •Neurologist report describing motor/sensory deficits
- •Functional assessment showing gait or mobility loss
Common questions about Paralysis of the Sciatic Nerve secondary to Amputation of Leg, with Defective Stump
- Can Paralysis of the Sciatic Nerve be service-connected as secondary to Amputation of Leg, with Defective Stump?
- Yes. Under 38 CFR § 3.310, a condition that is caused or aggravated by an already service-connected disability can be granted secondary service connection. Nerve damage near the stump site You'll need a current Paralysis of the Sciatic Nerve diagnosis and a medical nexus opinion linking it to your service-connected Am…
- What VA rating can I get for Paralysis of the Sciatic Nerve as a secondary condition?
- Paralysis of the Sciatic Nerve is rated under VASRD diagnostic code 8520 using the same criteria whether it's a direct or secondary claim: possible ratings are 80%, 60%, 40%, 20%, 10%. The rating depends on the severity of Paralysis of the Sciatic Nerve itself, not on the severity of Amputation of Leg, with Defective…
- How does a secondary Paralysis of the Sciatic Nerve claim affect my combined VA rating?
- The VA doesn't add ratings together. Using the official combined-ratings formula (38 CFR 4.25): a 60% rating for Amputation of Leg, with Defective Stump combined with a 40% rating for Paralysis of the Sciatic Nerve (example figures) produces a combined rating of 76%, not 100%. Approving Paralysis of the Sciatic Nerve…
- What evidence do I need to service-connect Paralysis of the Sciatic Nerve as secondary to Amputation of Leg, with Defective Stump?
- Strong evidence for the underlying Paralysis of the Sciatic Nerve diagnosis includes: EMG or nerve conduction study showing sciatic involvement; Neurologist report describing motor/sensory deficits; Functional assessment showing gait or mobility loss. For the secondary link itself, a nexus letter from a treating provi…
Primary condition
Full Amputation of Leg, with Defective Stump guide
Secondary condition
Full Paralysis of the Sciatic Nerve guide
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See how Amputation of Leg, with Defective Stump and Paralysis of the Sciatic Nerve combine with the rest of your service-connected conditions using the official VA combined-ratings formula.
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