Injury of oculomotor nerve, right side, initial encounter

This code signifies traumatic damage to the right oculomotor nerve (cranial nerve III), which controls most eye movements and pupillary constriction. Such an injury can lead to symptoms like ptosis, diplopia, and a dilated pupil on the affected side. This code is specifically for the initial phase of treatment for such an injury.

Apply this code when documentation clearly indicates a new, acute injury to the right oculomotor nerve due to trauma. This includes scenarios like head trauma resulting in nerve compression or laceration. Supporting documentation should detail the mechanism of injury, the specific nerve affected, and the initial presentation of symptoms.

• Ensure laterality (right side) is explicitly documented.
• Verify the encounter type is "initial" for the first time the patient is receiving active treatment for this injury.
• Distinguish from non-traumatic oculomotor palsies, which would be coded with G50-G59 series codes.