Iliotibial band syndrome, left leg

This code identifies inflammation and pain in the iliotibial band (ITB) on the lateral aspect of the left thigh, typically near the knee. It results from repetitive friction of the ITB over the lateral femoral epicondyle, often seen in athletes.

Apply this code when documentation specifies a diagnosis of iliotibial band syndrome affecting the patient's left leg. Supporting documentation should include physician notes detailing symptoms like lateral knee pain, tenderness, and a confirmed diagnosis of ITB syndrome.

• Ensure the documentation clearly specifies "left leg" to differentiate from bilateral or unspecified laterality.
• Do not confuse with other knee pain diagnoses; look for explicit mention of "iliotibial band syndrome."
• Consider additional codes for any associated symptoms or underlying causes if documented.