Epiphora due to insufficient drainage, left side

This code signifies excessive tearing (epiphora) in the left eye, specifically caused by an obstruction or inadequacy in the lacrimal drainage system. This prevents tears from properly draining into the nasal cavity, leading to overflow onto the cheek.

Apply this code when documentation clearly indicates left-sided epiphora attributed to a lacrimal drainage issue, such as a blocked tear duct, punctal stenosis, or canalicular obstruction. Supporting documentation should include ophthalmological examination findings confirming the drainage insufficiency.

• Ensure laterality is accurately documented and coded; this code is specific to the left eye.
• Distinguish from epiphora due to excessive tear production (e.g., irritation, allergies), which would use different codes.
• Look for specific diagnoses like dacryostenosis or lacrimal duct obstruction to support the "insufficient drainage" etiology.