ICD-10 Code B97.0 – Adenovirus as the cause of diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B97.0 – Adenovirus as the cause of diseases classified elsewhere
What it is
B97.0 identifies adenovirus as the infectious organism causing a condition classified elsewhere. Use it as an additional code when documentation links adenovirus to the patient’s illness.
Clinical signs
Clinical features vary; refer to documentation. Adenovirus may be associated with respiratory, eye, or gastrointestinal findings, but the coded condition should be supported by the record.
When to use this code
Use B97.0 when the provider documents adenovirus as the cause of another diagnosis, such as a viral syndrome or other infection coded elsewhere. It is not a stand-alone disease code. Pair it with the underlying condition when the record clearly identifies adenovirus.
Do not use for
Do not use this code if adenovirus is only suspected or not documented as the cause. Check documentation before assigning it, and avoid using it in place of the primary diagnosis.
Coding tip
Assign B97.0 only as an additional code and always code the documented manifestation or underlying condition first.