Spontaneous rupture of flexor tendons, left ankle and foot

This code signifies a non-traumatic tear of one or more flexor tendons in the left ankle or foot. This condition typically results from degenerative changes within the tendon, often exacerbated by chronic overuse or underlying systemic conditions, leading to a sudden, spontaneous separation of tendon fibers.

Apply this code when documentation clearly indicates a spontaneous (non-traumatic) rupture of a flexor tendon affecting the left ankle or foot. This includes scenarios where the patient reports sudden pain and loss of function without an acute external injury. Supporting documentation should specify the laterality and the spontaneous nature of the rupture.

• Differentiate from traumatic ruptures (S96.8- series) which involve an external force or injury.
• Ensure the documentation specifies "spontaneous" or "non-traumatic" to justify this code.
• Always verify laterality (left vs. right) and the specific anatomical site (ankle/foot vs. other lower leg regions).