Lesion of radial nerve

This code signifies a disorder or damage affecting the radial nerve. This can manifest as sensory disturbances, motor weakness, or pain along the distribution of the radial nerve, which innervates muscles responsible for wrist and finger extension and provides sensation to parts of the hand.

Use this code for diagnoses such as radial nerve palsy, radial neuropathy, or compression of the radial nerve. Documentation should clearly indicate a lesion or dysfunction of the radial nerve, often supported by neurological examination findings, electromyography (EMG), or nerve conduction studies (NCS).

• Differentiate from other mononeuropathies of the upper limb; ensure documentation specifies the radial nerve.
• Consider an additional code for the underlying cause if known (e.g., fracture, compression from external pressure).
• Be mindful of laterality if specified in the documentation (e.g., right vs. left radial nerve lesion).