ICD-10 Code B06.9 – Rubella without complication (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B06.9 – Rubella without complication
What it is
B06.9 identifies rubella, also called German measles, when the infection is documented without complications. Use it for an uncomplicated viral rubella diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Typical rubella may include a mild rash, low-grade fever, and swollen lymph nodes, but uncomplicated cases have no recorded complications.
When to use this code
Use B06.9 when the provider documents rubella and does not describe encephalitis, congenital infection, or another complication. It also fits cases where the record states rubella without further detail. If the chart is unclear, check documentation before assigning the code.
Do not use for
Do not use this code for rubella with documented complications or congenital rubella syndrome. If the note specifies a complication, code that condition instead.
Coding tip
Code only when rubella is explicitly documented; do not infer it from a rash alone.