Sprain of tibiofibular (joint) (ligament) superior, of knee

This code represents an injury to the superior tibiofibular joint or its associated ligaments, specifically involving a sprain. This joint is located just below the knee, connecting the tibia and fibula. A sprain indicates stretching or tearing of these ligaments.

Use this code when documentation clearly indicates a sprain of the superior tibiofibular joint or its ligaments. This often occurs due to direct trauma, twisting injuries, or hyperextension of the knee. Supporting documentation should include a physical exam noting tenderness, swelling, or instability at the superior tibiofibular joint.

• Differentiate from knee sprains (e.g., cruciate or collateral ligaments) which are coded elsewhere.
• Ensure the documentation specifies "superior" tibiofibular joint to avoid confusion with ankle sprains.
• Always review the physician's notes for the specific ligament(s) involved if further detail is provided, though this code is broad enough for a general superior tibiofibular sprain.