Injury of unspecified cranial nerve, subsequent encounter

This code signifies a documented injury to any of the twelve cranial nerves where the specific nerve affected is not identified, and the patient is in the healing phase following the initial treatment. This includes ongoing care, follow-up visits, or management of complications after the acute injury has been addressed.

Apply this code when documentation indicates a patient is receiving follow-up care for an unspecified cranial nerve injury, such as during rehabilitation, medication adjustments, or monitoring for residual deficits. The "D" seventh character is crucial and should be used when the patient is no longer receiving active treatment for the acute injury but is still under care for the effects of the injury.

• Ensure the documentation explicitly states "unspecified cranial nerve" or lacks specificity regarding which cranial nerve is injured.
• Confirm the encounter is for subsequent care, not the initial treatment (use "A" for initial) or sequela (use "S" for sequela).
• Avoid using this code if a specific cranial nerve injury (e.g., optic nerve, facial nerve) is documented; instead, use the more specific S04.x codes.