Other reactive arthropathies, right knee

This code signifies an inflammatory joint condition affecting the right knee, triggered by an infection elsewhere in the body, but not directly involving the joint itself. It encompasses various forms of reactive arthritis that don't fit more specific categories.

Apply this code when documentation specifies reactive arthropathy of the right knee, and the underlying cause is not a sexually transmitted infection (e.g., Chlamydia) or an enteropathic condition (e.g., Crohn's disease, ulcerative colitis). Supporting documentation should clearly indicate the laterality (right knee) and the reactive nature of the arthritis.

• Ensure documentation specifies "right knee" to avoid laterality errors.
• Differentiate from infectious arthritis (M00.-) where the joint itself is infected.
• Confirm the reactive nature; if the cause is known and more specific (e.g., post-dysenteric, post-chlamydial), use the appropriate M02.0- or M02.2- code.