Parasitic infection by filarial worms (e.g., causes elephantiasis)
Because the rating depends on which formula best reflects your symptoms, the most useful evidence documents both the frequency and severity of your digestive symptoms over time.
For the IBS formula, medical records and provider notes that record how often you have abdominal pain tied to defecation — and which accompanying symptoms are present — are central. Your own written statements, or statements from people who live with you, describing how often pain, urgency, bloating, mucus in stool, or changes in bowel habits occur in a typical month can also help show the frequency criteria.
For the Crohn's disease formula, endoscopy reports or radiologic study results are required by regulation to confirm the diagnosis. Records showing what medications you take — particularly whether immunosuppressants or biologic agents have been prescribed — help establish the management level. Lab results or clinical notes reflecting fever, tachycardia, or anemia support findings of systemic toxicity. Records of any hospitalizations within the past year, and statements about your ability to work or maintain daily routines given the number of daily diarrhea episodes, speak directly to the higher rating levels.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.
