H21.29

What This Code Means

This code describes a condition where the iris (the colored part of the eye) has wasted away or deteriorated, but it's not one of the more common types of iris atrophy. The iris may appear thin or damaged, which can affect how the eye controls light entering it.

Coding Tips

• •Use this code only when the documentation specifies iris atrophy that doesn't fit into more specific categories like essential iris atrophy (H21.21) or iris atrophy due to trauma or inflammation
• •Always verify laterality (right eye, left eye, or bilateral) as H21.29 requires a 7th character extension to specify which eye is affected