Rubella arthritis

This code signifies an inflammatory joint condition directly resulting from a rubella virus infection. It typically presents as acute, self-limiting polyarthritis or arthralgia, often affecting the small joints of the hands and feet, knees, and ankles. This complication is more common in adult women than in children or men.

Use this code when documentation clearly links joint pain or inflammation to a confirmed or suspected rubella infection. This is often seen following rubella vaccination in susceptible individuals or during natural rubella outbreaks. Supporting documentation should include a diagnosis of rubella arthritis, often with a history of recent rubella infection or vaccination.

• Ensure the documentation explicitly states "rubella arthritis" or "arthritis due to rubella" to differentiate from other viral arthritides.
• Do not use this code for general arthralgia without a clear causal link to rubella.
• Consider sequencing this code after the primary rubella infection code (B06.9) if the arthritis is a manifestation of an active infection.