ICD-10 Code H04.33 – Acute lacrimal canaliculitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.33 – Acute lacrimal canaliculitis
What it is
H04.33 identifies an acute infection or inflammation of the lacrimal canaliculus, the small tear-drainage channel near the eyelid. Use it when the record clearly states acute canaliculitis.
Clinical signs
Typical findings include localized eyelid tenderness, swelling near the punctum, tearing, and possible discharge from the canaliculus. Clinical features vary; refer to documentation.
When to use this code
Use H04.33 when the clinician documents acute canaliculitis, including infection limited to the canaliculus. It is appropriate for confirmed cases noted on exam, consultation, or procedure documentation. If the note only says tearing or eye irritation, check documentation before coding.
Do not use for
Do not use this code for chronic canaliculitis or other tear-duct disorders unless acute canaliculitis is specifically documented. Check documentation if the condition is described only as dacryocystitis or nonspecific epiphora.
Coding tip
Code the most specific lacrimal disorder stated in the record, and verify that “acute” is documented before assigning H04.33.