ICD-10 Code H04.333 – Acute lacrimal canaliculitis of bilateral lacrimal passages (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.333 – Acute lacrimal canaliculitis of bilateral lacrimal passages
What it is
This code identifies an acute infection and inflammation of both lacrimal canaliculi, the small drainage channels near the inner eyelids. It is used when documentation specifically states bilateral involvement.
Clinical signs
Typical findings include redness, tenderness, swelling, and discharge at the puncta. Clinical features vary; refer to documentation for bilateral canalicular infection or obstruction with acute inflammation.
When to use this code
Use H04.333 when the provider documents acute canaliculitis affecting both lacrimal passages. Apply it when the record clearly states bilateral disease, even if one side seems more symptomatic. If laterality is not documented, check documentation before coding.
Do not use for
Do not use this code for chronic canaliculitis, isolated dacryocystitis, or nonspecific eye discharge without canalicular infection. If the note does not confirm bilateral acute canaliculitis, check documentation.
Coding tip
Confirm both laterality and acuity in the chart before assigning H04.333.