ICD-10 Code H04.531 – Neonatal obstruction of right nasolacrimal duct (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.531 – Neonatal obstruction of right nasolacrimal duct
What it is
This code identifies a blocked tear duct on the right side in a newborn. It means tears cannot drain normally from the eye into the nose.
Clinical signs
Typical findings include tearing, eye discharge, or crusting on the right side in a neonate. Clinical features vary; refer to documentation.
When to use this code
Use H04.531 when the record specifically documents neonatal obstruction of the right nasolacrimal duct. Choose it for newborns with congenital tear drainage blockage limited to the right eye. If the laterality or neonatal status is unclear, check documentation.
Do not use for
Do not use this code for left or bilateral nasolacrimal obstruction, or for non-neonatal tear duct disease. If the chart does not confirm a newborn diagnosis, check documentation.
Coding tip
Verify both laterality and neonatal status in the note before assigning H04.531.