ICD-10 Code B77.8 – Ascariasis with other complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B77.8 – Ascariasis with other complications
What it is
B77.8 identifies ascariasis caused by Ascaris infection when the chart documents complications not captured by a more specific code. Use it for parasitic disease with additional, clearly documented problems.
Clinical signs
Clinical features vary; refer to documentation. Ascariasis may be associated with abdominal pain, intestinal symptoms, or complications involving the biliary or pancreatic system when specifically noted.
When to use this code
Use this code when the provider documents ascariasis plus another complication and does not name a more specific ICD-10 option. It may apply when the record describes a complication of Ascaris infection without further detail. Check documentation if the complication is unclear.
Do not use for
Do not use this code for uncomplicated ascariasis or when the chart supports a more specific ascariasis code. Do not assign it for suspected infection without confirmation.
Coding tip
Code the complication only when the provider links it to ascariasis in the documentation.