Achilles tendinitis, right leg

This code identifies inflammation of the Achilles tendon in the right lower extremity. It typically presents with pain, swelling, and tenderness along the posterior aspect of the ankle, often exacerbated by activity. This condition can range from mild irritation to severe degeneration of the tendon fibers.

This code is appropriate for documenting a diagnosis of Achilles tendinitis specifically affecting the right leg. Supporting documentation should clearly indicate the laterality (right leg) and the inflammatory nature of the tendon pathology. This diagnosis is commonly made based on physical examination findings and patient history.

• Ensure documentation specifies "right leg" to avoid using an unspecified laterality code.
• Distinguish from Achilles tendon rupture (S86.0-) or other ankle/foot pain codes (M79.67-).
• Consider an additional code for the underlying cause if known, such as overuse or trauma.