Spontaneous rupture of other tendons, left forearm

This code signifies the non-traumatic tearing of a tendon in the left forearm, excluding those specifically classified elsewhere (e.g., rotator cuff, Achilles). This rupture occurs without external force or injury, often due to underlying degenerative changes or inflammatory processes within the tendon.

Apply this code when documentation clearly indicates a spontaneous (non-traumatic) rupture of a tendon located in the left forearm, such as the extensor carpi ulnaris or flexor carpi radialis. Supporting documentation should include physician notes detailing the absence of acute injury and the specific tendon involved.

• Ensure the documentation specifies "spontaneous" or "non-traumatic" to differentiate from traumatic ruptures.
• Verify the laterality is clearly documented as "left forearm."
• Do not use this code for ruptures of tendons in the hand or wrist, or for traumatic tendon injuries.