ICD-10 Code B69.9 – Cysticercosis, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B69.9 – Cysticercosis, unspecified
What it is
Cysticercosis is infection caused by the larval form of Taenia solium. Use this code when the record confirms cysticercosis but does not specify the site or organ involved.
Clinical signs
Clinical features vary; refer to documentation. Patients may have signs related to the affected tissue, and neurocysticercosis may present with seizures, headaches, or neurologic deficits.
When to use this code
Use B69.9 when the provider documents cysticercosis without identifying a more specific form or location. It also fits when the note confirms infection but the site is not stated.
If the chart later specifies brain, eye, muscle, or another site, code the more specific ICD-10-CM option instead. Check documentation for exact anatomic detail and any associated manifestations.
Do not use for
Do not use this code for taeniasis, suspected exposure, or a history of infection without active cysticercosis. Do not assign it when a more specific cysticercosis code is documented.
Coding tip
Query for the involved site whenever the provider only writes “cysticercosis,” because specificity may change the final code.