ICD-10 Code A98 – Other Viral Hemorrhagic Fevers, Not Elsewhere Classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A98 – Other viral hemorrhagic fevers, not elsewhere classified
What it is
A98 is used for viral hemorrhagic fevers that do not fit a more specific ICD-10 category. These infections can cause fever and bleeding-related illness, but the exact virus is not identified here.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include acute fever, weakness, bleeding manifestations, and signs of severe systemic infection or vascular involvement.
When to use this code
Use A98 when the record documents a viral hemorrhagic fever and the provider does not name a more specific classified type. It is appropriate when the diagnosis is confirmed or strongly supported, but the organism is not further specified. Check documentation if the note only says “suspected” or “rule out.”
Do not use for
Do not use A98 for a specific viral hemorrhagic fever that has its own code, or for nonviral bleeding disorders. If the chart identifies the exact virus, code the more specific diagnosis instead.
Coding tip
Code the highest level of specificity supported by the provider’s documentation, and query if the hemorrhagic fever type is named but not indexed clearly.