ICD-10 Code H04.571 – Stenosis of right lacrimal sac (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.571 – Stenosis of right lacrimal sac
What it is
H04.571 identifies narrowing of the right lacrimal sac, the tear-drainage reservoir on that side. This code describes an anatomic obstruction that can impair normal tear flow.
Clinical signs
Common findings include tearing, recurrent discharge, or swelling near the inner corner of the right eye. Clinical features vary; refer to documentation for laterality and whether the obstruction is partial or complete.
When to use this code
Use this code when the record specifically documents stenosis of the right lacrimal sac. It is appropriate for outpatient, inpatient, or specialist notes that identify the right side and the narrowed sac as the diagnosis. If the chart instead describes a different tear-duct problem, check documentation before coding.
Do not use for
Do not use H04.571 for unspecified lacrimal obstruction or for left-sided disease. If the note only mentions tearing without a confirmed diagnosis, check documentation.
Coding tip
Verify right-sided laterality in the assessment, impression, or operative note before assigning H04.571.