Spontaneous rupture of flexor tendons, right lower leg

This code signifies the non-traumatic tearing of flexor tendons within the right lower leg. This typically occurs without an acute injury, often due to underlying degenerative changes, inflammatory conditions, or chronic overuse that weakens the tendon structure.

Apply this code when documentation clearly indicates a spontaneous (non-traumatic) rupture of any flexor tendon in the patient's right lower leg. This includes conditions like Achilles tendon rupture or other calf muscle flexor tendon ruptures where no external force or injury is reported as the cause.

• Ensure documentation specifies "spontaneous" or "non-traumatic" to differentiate from traumatic ruptures.
• Verify the laterality is explicitly stated as "right lower leg"; separate codes exist for other locations.
• Distinguish from tendinitis or tendinosis without rupture; this code specifically requires a complete or partial tear.