Iliotibial band syndrome, right leg

This code identifies iliotibial band syndrome (ITBS) affecting the right leg. ITBS is an overuse injury characterized by inflammation and pain on the lateral aspect of the knee or thigh, often due to repetitive friction of the iliotibial band over the lateral femoral epicondyle.

Use this code when documentation specifies a diagnosis of iliotibial band syndrome localized to the patient's right lower extremity. Supporting documentation should include a physical exam noting tenderness or pain along the right IT band, often exacerbated by activity.

• Ensure laterality is clearly documented (right vs. left vs. bilateral).
• Do not confuse with other knee pain diagnoses (e.g., patellofemoral pain syndrome) unless ITBS is explicitly stated.
• Consider sequencing with activity codes (e.g., Y93.-) if the cause is related to sports or other physical activity.