Phlegmonous dacryocystitis of left lacrimal passage

This code represents an acute, purulent inflammation of the left lacrimal sac, characterized by a localized collection of pus and significant swelling. It is a severe form of dacryocystitis, often presenting with pain, redness, and tenderness in the inner corner of the eye.

Use this code when documentation clearly indicates a diagnosis of phlegmonous dacryocystitis affecting the left lacrimal passage. This typically involves findings of a tender, swollen, and erythematous lacrimal sac with possible discharge, often confirmed by clinical examination.

• Ensure laterality is accurately documented (left vs. right vs. bilateral).
• Distinguish from chronic dacryocystitis or other inflammatory conditions of the lacrimal system.
• Look for documentation of pus formation or abscess to support the "phlegmonous" specificity.