ICD-10 Code B97.11 – Coxsackievirus as the cause of diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B97.11 – Coxsackievirus as the cause of diseases classified elsewhere
What it is
Use this code when Coxsackievirus is documented as the infectious cause of another condition. It identifies the organism, not the primary disease itself.
Clinical signs
Clinical features vary; refer to documentation. Coxsackievirus infections may be associated with fever, rash, sore throat, hand-foot-and-mouth disease, or other virus-related syndromes.
When to use this code
Assign B97.11 when the record clearly states Coxsackievirus is the cause of a separate diagnosed condition. Pair it with the manifestation or site-specific diagnosis, as instructed by the chart.
Use it only when the provider links the virus to the illness. If the note names a different enterovirus, or the cause is not documented, check documentation before coding.
Do not use for
Do not use this code for a primary Coxsackievirus infection without an associated condition. Do not substitute it for unspecified viral illness or for infections caused by another organism.
Coding tip
Code the underlying disease first, then add B97.11 only when the provider documents Coxsackievirus as the causal agent.