ICD-10 Code B78.0 – Intestinal strongyloidiasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B78.0 – Intestinal strongyloidiasis
What it is
B78.0 identifies intestinal infection caused by Strongyloides stercoralis. Use it when the documentation specifies intestinal strongyloidiasis rather than a broader or unspecified strongyloidiasis diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include abdominal pain, diarrhea, nausea, or other gastrointestinal complaints consistent with intestinal infection.
When to use this code
Use B78.0 when the provider documents intestinal strongyloidiasis, including confirmed infection affecting the intestine. It is appropriate when the record clearly distinguishes the intestinal form from other strongyloidiasis presentations. If the site or type is not specified, check documentation.
Do not use for
Do not use B78.0 for suspected infection without confirmation if the record does not support it. Avoid it when documentation describes a different parasitic disease or a nonintestinal form of strongyloidiasis.
Coding tip
Verify that the note names intestinal strongyloidiasis specifically; if the site is unclear, query the provider.