Ligneous conjunctivitis, bilateral

This code signifies a rare, chronic form of conjunctivitis characterized by the development of wood-like pseudomembranes on the conjunctival surface of both eyes. It is associated with plasminogen deficiency, leading to impaired fibrinolysis and excessive fibrin deposition. The condition can affect other mucous membranes but is primarily recognized for its ocular manifestations.

Use this code when documentation clearly indicates a diagnosis of ligneous conjunctivitis affecting both the right and left eyes. This diagnosis is typically made by an ophthalmologist based on clinical appearance and may be supported by laboratory findings confirming plasminogen deficiency. It is appropriate for initial diagnosis and subsequent encounters for management of this chronic condition.

• Ensure documentation explicitly states "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Do not confuse with other forms of chronic conjunctivitis; look for specific mention of "ligneous" or "pseudomembranous" features.
• Consider co-reporting with codes for underlying plasminogen deficiency (e.g., D68.2) if documented and clinically relevant.