ICD-10 Code H04.573 – Stenosis of bilateral lacrimal sac (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.573 – Stenosis of bilateral lacrimal sac
What it is
This code identifies narrowing of both lacrimal sacs, the drainage reservoirs that carry tears from the eye toward the nose. It indicates bilateral obstruction or stenosis affecting tear outflow.
Clinical signs
Patients may have chronic tearing, recurrent eye discharge, or swelling near the inner corners of both eyes. Clinical features vary; refer to documentation for confirmed bilateral lacrimal sac narrowing.
When to use this code
Use H04.573 when the record clearly documents bilateral stenosis of the lacrimal sac as the diagnosed condition. It is appropriate for ophthalmology or ENT notes describing persistent tear drainage impairment on both sides. If the chart only mentions epiphora or nonspecific tearing, check documentation before coding.
Do not use for
Do not use this code for unilateral lacrimal sac stenosis or for general tear duct obstruction without bilateral sac involvement. Also avoid it when the note describes symptoms only, without a documented diagnosis.
Coding tip
Confirm that the provider specifies both lacrimal sacs are stenotic before assigning H04.573.