ICD-10 Code H04.42 – Chronic lacrimal canaliculitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.42 – Chronic lacrimal canaliculitis
What it is
H04.42 identifies chronic inflammation of the lacrimal canaliculus, the small tear-drainage channel near the eyelid. Use it when documentation specifically states chronic canaliculitis.
Clinical signs
Typical findings include persistent tearing, localized tenderness, eyelid swelling, and discharge from the punctum. Clinical features vary; refer to documentation.
When to use this code
Use H04.42 when the clinician documents chronic lacrimal canaliculitis, canalicular infection, or chronic inflammation limited to the canaliculus. It is appropriate when the diagnosis is confirmed in the assessment, problem list, or operative note. Check documentation if the site is unclear.
Do not use for
Do not use this code for acute canaliculitis unless the record states chronic disease. Do not substitute it for other lacrimal system disorders, such as dacryocystitis or nonspecific tearing.
Coding tip
Verify that the provider names the canaliculus and the chronic nature of the condition before assigning H04.42.