Diagnostic Code 6305 · 38 CFR §4.88b
Lymphatic filariasis, including elephantiasis, is a parasitic disease caused by microscopic worms transmitted through mosquito bites. The VA uses the General Rating Formula: active disease at 100 percent, and residuals including epididymitis, lymphangitis, lymphatic obstruction, or lymphedema affecting extremities, genitals, or breasts are rated under appropriate body system codes.
| Rating | Criteria |
|---|---|
| 100% | Active parasitic infection with documented microfilaria and symptomatic lymphatic inflammation. |
| 0% | Resolved. Residual disabilities including epididymitis, lymphangitis, lymphatic obstruction, or lymphedema are rated under appropriate body system codes. |
Blood tests showing microfilariae or serological evidence. Deployment records to endemic tropical regions. Imaging showing lymphatic damage. Treatment records.
Lymphatic damage can take years or decades to become clinically apparent.
Antiparasitic medications can kill the worms but cannot reverse existing lymphatic damage.