ICD-10 Code A32.89 – Other forms of listeriosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A32.89 – Other forms of listeriosis
What it is
A32.89 identifies listeriosis that does not fit the more specific ICD-10 categories. Use it for documented Listeria infection when the record describes another form of disease not otherwise classified.
Clinical signs
Clinical features vary; refer to documentation. Listeriosis may present with fever, gastrointestinal illness, or invasive infection, and severe cases can involve the central nervous system or bloodstream.
When to use this code
Use A32.89 when the provider documents listeriosis, but the record does not specify meningitis, sepsis, or another listed subtype. It may also apply when the chart clearly states an atypical or other form of Listeria infection. You should code from the provider’s final diagnosis, not a suspected exposure alone.
Do not use for
Do not use this code for listerial meningitis, listerial sepsis, or pregnancy-related listeriosis when a more specific code is documented. Check documentation if the organism is not confirmed.
Coding tip
Look for the exact provider wording; if a more specific listeriosis type is named, code that diagnosis instead of A32.89.