Lacrimal fistula left lacrimal passage

This code describes an abnormal, persistent communication or tract originating from the left lacrimal drainage system. This fistula allows tears or other fluid to bypass the normal drainage pathway, often leading to epiphora or discharge. It can be congenital or acquired due to trauma, infection, or surgery.

Use this code when documentation clearly indicates a lacrimal fistula affecting the left lacrimal passage. This typically presents with persistent tearing, discharge, or a visible opening near the inner corner of the left eye. Supporting documentation should include physician notes detailing the location (left side) and nature of the fistula.

• Ensure laterality is explicitly documented as "left" to support this specific code.
• Distinguish from lacrimal gland disorders or dacryocystitis, which are separate conditions.
• Consider an additional code for the underlying cause if the fistula is acquired (e.g., trauma, infection).