ICD-10 Code B76 – Hookworm diseases (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B76 – Hookworm diseases
What it is
B76 identifies hookworm disease, an intestinal infection caused by hookworms. Use it when the record documents hookworm infection without a more specific site or complication.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include abdominal discomfort, diarrhea, and iron-deficiency anemia, especially in heavier infections.
When to use this code
Use B76 when the provider documents hookworm disease, hookworm infection, or intestinal hookworm infestation. It is appropriate when the chart does not specify a more detailed subtype or related complication. If the note only says parasitic infection, check documentation before coding.
Do not use for
Do not use B76 for suspected hookworm disease without confirmation unless your coding rules allow symptom-based coding. Do not use it for other helminth infections or for anemia alone without documented hookworm disease.
Coding tip
Code the documented hookworm diagnosis first, then review the record for any linked anemia or other complications that may require additional codes.