ICD-10 Code B06.81 – Rubella pneumonia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B06.81 – Rubella pneumonia
What it is
B06.81 identifies pneumonia caused by rubella infection. Use it when rubella is documented as the cause of the lung infection, not just a concurrent rash illness.
Clinical signs
Clinical features vary; refer to documentation. Typical pneumonia findings may include cough, shortness of breath, fever, and abnormal chest examination or imaging, with rubella confirmed or noted as the underlying infection.
When to use this code
Use this code when the provider documents rubella pneumonia, rubella with pneumonia, or pneumonia due to rubella. It is appropriate when the respiratory infection is directly linked to rubella in the record. Check documentation if the chart only says rubella infection without lung involvement.
Do not use for
Do not use B06.81 for uncomplicated rubella or for pneumonia from another organism. If the cause is unclear or not documented, check documentation before assigning this code.
Coding tip
Link the pneumonia to rubella only when the provider clearly states that relationship.