Other lesions of median nerve, right upper limb

This code signifies a non-traumatic lesion or disorder affecting the median nerve in the patient's right arm, excluding carpal tunnel syndrome. It encompasses various conditions that impair median nerve function, such as nerve compression (outside the carpal tunnel), inflammation, or other structural abnormalities.

Apply this code when documentation specifies a median nerve lesion in the right upper limb that is not carpal tunnel syndrome. Common scenarios include pronator teres syndrome, anterior interosseous nerve syndrome, or other entrapment neuropathies of the median nerve proximal to the wrist. Supporting documentation should clearly identify the affected nerve and laterality.

• Differentiate carefully from G56.01 (Carpal tunnel syndrome, right upper limb); this code is for other lesions.
• Ensure laterality (right upper limb) is explicitly documented.
• Consider an additional code for the underlying cause if known (e.g., trauma, tumor).