Ligneous conjunctivitis, right eye

This code describes ligneous conjunctivitis affecting the right eye. Ligneous conjunctivitis is a rare, chronic form of conjunctivitis characterized by the formation of wood-like, pseudomembranous lesions on the conjunctiva, often due to a plasminogen deficiency.

This code is appropriate when documentation specifies a diagnosis of ligneous conjunctivitis localized to the patient's right eye. It should be used when the ophthalmologist's notes confirm the characteristic pseudomembranous lesions and the specific laterality.

• Ensure documentation clearly specifies "ligneous" conjunctivitis and not another form of chronic conjunctivitis.
• Verify laterality; separate codes exist for the left eye (H10.512) and bilateral involvement (H10.513).
• Look for supporting documentation of plasminogen deficiency if available, though not required for this specific diagnosis code.