ICD-10 Code B71.1 – Dipylidiasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B71.1 – Dipylidiasis
What it is
Dipylidiasis is an intestinal infection caused by the tapeworm Dipylidium caninum. Use this code when documentation identifies this specific parasitic infestation in a patient.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include mild gastrointestinal symptoms or the passage of tapeworm segments in stool or around the anus.
When to use this code
Use B71.1 when the provider documents dipylidiasis, dipylidium infection, or infestation due to Dipylidium caninum. It may also apply when the diagnosis is confirmed by stool or segment identification and recorded in the chart. Check documentation if the note only says “tapeworm” without species.
Do not use for
Do not use this code for unspecified intestinal helminth infection or other tapeworm species. If the organism is not identified, check documentation and code the more specific or unspecified parasitic diagnosis as supported.
Coding tip
Confirm the organism name in the assessment, lab report, or discharge diagnosis before assigning B71.1.