Spontaneous rupture of other tendons, unspecified forearm

This code signifies a non-traumatic tear of a tendon in the forearm, excluding the flexor and extensor tendons, where the specific forearm (right or left) is not documented. It indicates a spontaneous disruption of the tendon fibers without an external force or injury.

Apply this code when documentation clearly states a spontaneous rupture of a forearm tendon, and the specific tendon involved is not a flexor or extensor, nor is the laterality specified. This is appropriate for cases where the physician notes a rupture due to degenerative changes or an underlying systemic condition, rather than an acute injury.

• Ensure documentation explicitly states "spontaneous rupture" and identifies the forearm as the affected area.
• Avoid using this code if the specific tendon (e.g., flexor carpi radialis) or laterality (right/left) is documented; more specific codes exist.
• Always query the provider for more specific information regarding the exact tendon involved and laterality if not clearly stated.