ICD-10 Code B97.12 – Echovirus as the cause of diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B97.12 – Echovirus as the cause of diseases classified elsewhere
What it is
B97.12 identifies echovirus as the infectious cause of another condition, not the condition itself. Use it when documentation links echovirus to a disease classified elsewhere.
Clinical signs
Clinical features vary; refer to documentation. Echovirus infections may be associated with febrile illness, rash, aseptic meningitis, or other enteroviral syndromes, but you should code the documented manifestation.
When to use this code
Use B97.12 when the provider states echovirus is the cause of a separate diagnosis, such as meningitis, exanthem, or another specified condition. Pair it with the code for the manifested disease. If the record only says “echovirus infection,” check documentation for the most specific diagnosis available.
Do not use for
Do not use this code for a standalone echovirus illness without a linked manifestation. It is also incorrect if another organism is documented as the cause or if the infection is not specified.
Coding tip
Always code the underlying condition first, then add B97.12 when echovirus is clearly documented as the cause.