ICD-10 Code B71.0 – Hymenolepiasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B71.0 – Hymenolepiasis
What it is
B71.0 identifies hymenolepiasis, an intestinal infection caused by Hymenolepis tapeworms. Use it when documentation states this specific parasitic infestation.
Clinical signs
Clinical features vary; refer to documentation. Patients may have abdominal discomfort, diarrhea, or be asymptomatic, and diagnosis is often based on stool examination or recorded clinical assessment.
When to use this code
Use B71.0 when the provider documents hymenolepiasis, Hymenolepis infection, or tapeworm infestation due to Hymenolepis species. It fits confirmed intestinal infection and related encounter documentation. If the record only says “parasite” or “worm infection,” check documentation for the organism.
Do not use for
Do not use this code for other helminth infections, unspecified intestinal parasites, or noninfectious gastrointestinal complaints. If the organism is not Hymenolepis, choose the documented condition instead.
Coding tip
Verify the parasite name in the chart before assigning B71.0, because unspecified wording may require a different code.