Injury to hypoglossal nerve

This code signifies damage or trauma to the hypoglossal nerve (cranial nerve XII), which is responsible for tongue movement. Such an injury can lead to impaired tongue function, affecting speech, swallowing, and oral motor control.

Use this code when documentation clearly indicates a direct injury to the hypoglossal nerve, such as from trauma, surgery, or compression. Supporting documentation should specify the nerve involved and the nature of the injury.

• Differentiate from other cranial nerve palsies; ensure documentation specifically names the hypoglossal nerve.
• Consider an external cause code (E-code) if the injury is due to an external event.
• Do not use for idiopathic or non-traumatic hypoglossal nerve disorders; those would fall under neurological categories.