Mooren's corneal ulcer, right eye

This code identifies Mooren's corneal ulcer affecting the right eye. Mooren's ulcer is a rare, chronic, and progressive peripheral corneal ulcerative disease, typically characterized by an idiopathic, painful, and destructive ulceration of the limbal region. It can lead to significant vision impairment if not managed appropriately.

Apply this code when documentation clearly indicates a diagnosis of Mooren's corneal ulcer specifically in the right eye. Supporting documentation should include ophthalmological examination findings detailing the characteristic peripheral corneal ulceration and the affected eye.

• Ensure laterality is precisely documented and coded; this code specifies the right eye.
• Distinguish from other forms of peripheral ulcerative keratitis, such as those associated with systemic autoimmune diseases, which would be coded differently.
• Consider additional codes for associated symptoms or complications, such as pain (e.g., H57.1-) or vision loss (e.g., H54.0-H54.7), if documented.