ICD-10 Code B83.8 – Other specified helminthiases (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B83.8 – Other specified helminthiases
What it is
B83.8 identifies helminth infections that are not classified elsewhere in ICD-10-CM. Use it for documented worm infections that fit a specific helminthiasis diagnosis but do not have a more precise code.
Clinical signs
Clinical features vary by parasite and site of infection; refer to documentation. Patients may have nonspecific gastrointestinal, skin, or systemic findings, but the exact presentation depends on the confirmed helminth.
When to use this code
Use B83.8 when the record names a helminth infection and no more specific ICD-10 code applies. It is appropriate when the provider documents an “other specified” worm infection or when the organism is identified but not separately indexed. Check documentation for the exact parasite and site.
Do not use for
Do not use this code for helminthiases with a dedicated ICD-10 code, or when the diagnosis is only suspected. If the chart does not support a specific helminth infection, check documentation.
Coding tip
Verify the parasite name in the note and code the most specific helminthiasis available before defaulting to B83.8.