Dir infct of mult joints in infec/parastc dis classd elswhr

This code signifies an inflammatory joint condition affecting multiple joints, directly caused by an underlying infectious or parasitic disease. It represents a secondary manifestation where the primary infection has spread to and is directly impacting the synovial tissues of several joints.

Use this code when documentation clearly indicates polyarthritis directly resulting from a systemic infectious or parasitic disease, such as Lyme disease, tuberculosis, or viral infections. The medical record must specify that the infection is the direct cause of the joint inflammation, not merely an associated symptom.

• Always sequence the underlying infectious or parasitic disease code first, as this code is for a manifestation classified "elsewhere."
• Ensure documentation specifies "multiple joints" to differentiate from monarthritis (M01.X0-M01.X8).
• Do not use for reactive arthritis (M02.-) where the joint inflammation is an immune response to an infection, not a direct infection of the joint itself.