Prepatellar bursitis, left knee

This code signifies inflammation of the prepatellar bursa, a fluid-filled sac located in front of the kneecap, specifically affecting the left knee. This condition typically results in pain, swelling, and tenderness over the anterior aspect of the left patella.

Apply this code when documentation clearly indicates a diagnosis of prepatellar bursitis localized to the left knee. This often arises from repetitive kneeling, direct trauma, or infection. Supporting documentation should include physical exam findings consistent with bursitis and laterality.

• Ensure the documentation specifies "left knee" to avoid laterality errors.
• Distinguish from other knee conditions like patellofemoral pain syndrome or knee sprains.
• Look for documentation of acute versus chronic bursitis, as this may impact other coding considerations (though not this specific code).