ICD-10 Code B06.09 – Other neurological complications of rubella (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B06.09 – Other neurological complications of rubella
What it is
B06.09 identifies neurological complications caused by rubella that do not fit a more specific rubella code. Use it when the record links a rubella infection to nervous system involvement.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include neurologic symptoms occurring with or after rubella, such as altered mental status, weakness, or other nervous system signs noted by the clinician.
When to use this code
Use this code when the provider documents rubella with a neurological complication, but the specific complication is not named elsewhere in ICD-10-CM. It is appropriate for confirmed or suspected rubella-related nervous system involvement documented in the chart.
Code the rubella diagnosis only when the record clearly supports the relationship. If the neurologic problem is present without a documented rubella link, check documentation before assigning B06.09.
Do not use for
Do not use this code for uncomplicated rubella or for neurological disorders unrelated to rubella. If a more specific rubella complication code is documented, choose that code instead.
Coding tip
Look for explicit provider wording tying the neurologic condition to rubella; if that link is absent, check documentation.