Papilledema associated with decreased ocular pressure

This code signifies swelling of the optic disc, caused by increased intracranial pressure, occurring in the presence of abnormally low pressure within the eye. This paradoxical presentation requires careful clinical evaluation to differentiate from other forms of optic disc edema.

Assign this code when documentation explicitly links papilledema to a diagnosis of decreased intraocular pressure (e.g., hypotony, ocular perforation, or post-surgical complications leading to low IOP). Supporting documentation should include ophthalmological examination findings confirming optic disc edema and measurements indicating reduced intraocular pressure.

• Ensure documentation clearly establishes the association between papilledema and decreased ocular pressure, not just their co-occurrence.
• Do not confuse with papilledema due to normal or elevated intraocular pressure, which would be coded differently.
• Always code the underlying cause of the decreased ocular pressure if known and documented.