Injury of ulnar nerve at forearm level, unsp arm, init

This code signifies damage to the ulnar nerve within the forearm region, without specifying which arm is affected. The injury is acute, meaning it's the first time the patient is being treated for this specific condition.

This code is appropriate for initial encounters where a patient presents with symptoms such as numbness, tingling, weakness, or pain in the distribution of the ulnar nerve in the forearm, and the specific arm involved has not yet been documented or determined. It's used when the cause of the injury (e.g., trauma, compression) is not further specified.

• Only use this code for the initial treatment of the injury; subsequent encounters will require a different seventh character.
• Avoid this code if the specific arm (left or right) is known; instead, use the more specific codes (S54.01XA or S54.02XA).
• Ensure documentation clearly indicates the injury is at the forearm level, not the wrist or elbow.