Iris atrophy (essential) (progressive), right eye

This code signifies a degenerative condition affecting the iris of the right eye, characterized by the thinning or wasting away of iris tissue. This atrophy can be idiopathic (essential) or progressively worsen over time, leading to changes in pupil shape, light sensitivity, and potentially vision disturbances.

Apply this code when documentation specifies iris atrophy affecting the right eye, particularly when the physician notes it as essential or progressive. Supporting documentation should include ophthalmological examination findings detailing the extent and location of the atrophy.

• Always specify laterality; this code is for the right eye only.
• Distinguish from other iris disorders like iridocyclitis or iris cysts.
• Ensure the documentation clearly states "atrophy" and not just a general iris abnormality.