Injury of other cranial nerves, left side, subs encntr

This code signifies a documented injury to any cranial nerve on the left side, excluding the optic and acoustic nerves, that is being treated during a subsequent encounter. This could involve trauma to nerves such as the trigeminal, facial, glossopharyngeal, vagus, accessory, or hypoglossal nerves. The injury may manifest as sensory deficits, motor weakness, or autonomic dysfunction.

Apply this code when a patient presents for follow-up care, rehabilitation, or management of complications related to a previously sustained injury to a left-sided cranial nerve (excluding optic and acoustic). Documentation should clearly indicate the specific cranial nerve involved, the left side, and that this is not the initial treatment for the injury.

• Ensure the documentation specifies "left side" and identifies the encounter as "subsequent."
• Differentiate from S04.891- for right-sided injuries and S04.899- for unspecified side.
• Do not use for injuries to the optic nerve (S04.0-) or acoustic nerve (S04.6-).