Anterior synechiae (iris), bilateral

This code describes the abnormal adhesion of the iris to the posterior surface of the cornea (anterior synechiae) affecting both eyes. This condition can obstruct aqueous humor outflow, potentially leading to secondary glaucoma.

Use this code when documentation clearly indicates the presence of anterior synechiae involving both the right and left eyes. This is typically diagnosed during a slit lamp examination.

• Ensure documentation specifies "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Distinguish from posterior synechiae (iris adhering to the lens capsule), which has a different code.
• Code any underlying cause, such as uveitis or trauma, as a primary diagnosis if applicable.