Foster-Kennedy syndrome, right eye

This code describes Foster-Kennedy syndrome affecting the right eye. This rare neurological condition is characterized by optic atrophy in one eye (in this case, the right eye) due to compression of the optic nerve, accompanied by papilledema in the contralateral eye and an ipsilateral anosmia. It typically results from a mass lesion, often a meningioma, in the anterior cranial fossa.

Use this code when documentation clearly indicates a diagnosis of Foster-Kennedy syndrome with the right eye specifically identified as having optic atrophy. Supporting documentation should detail the clinical triad of right optic atrophy, contralateral papilledema, and ipsilateral anosmia, along with any identified underlying etiology.

• Ensure laterality is precisely documented for the affected eye with optic atrophy.
• Code the underlying cause (e.g., meningioma) first, followed by this code for the manifestation.
• Do not confuse with other causes of unilateral optic atrophy or papilledema; Foster-Kennedy syndrome has a specific clinical presentation.