Other lesion of median nerve

This code signifies a median nerve disorder that isn't carpal tunnel syndrome, mononeuritis, or an injury. It encompasses various non-traumatic pathologies affecting the median nerve, such as entrapment neuropathies at sites other than the carpal tunnel, inflammatory conditions, or tumors.

Apply this code when documentation specifies a median nerve lesion, but explicitly rules out carpal tunnel syndrome, mononeuritis, or a current injury. Examples include pronator teres syndrome, anterior interosseous nerve syndrome, or a median nerve neuroma not due to trauma. Supporting documentation should clearly identify the median nerve as affected and describe the nature of the lesion.

• Differentiate carefully from G56.0 (Carpal tunnel syndrome) and G56.1 (Other lesions of median nerve) in ICD-10-CM.
• Ensure the documentation specifies a lesion and not just general median nerve pain or dysfunction without an identified pathology.
• Always look for more specific codes if the exact etiology (e.g., specific entrapment site) is documented.