Acquired stenosis of left nasolacrimal duct

This code signifies a narrowing or obstruction of the left nasolacrimal duct that develops after birth, impeding the normal drainage of tears. This acquired condition leads to epiphora (excessive tearing) and can predispose the patient to infections of the lacrimal sac.

Use this code when documentation clearly indicates an acquired, non-congenital stenosis affecting the left nasolacrimal duct. This is typically supported by ophthalmological examination findings, such as a blocked lacrimal irrigation or probing, and patient complaints of persistent tearing from the left eye.

• Differentiate carefully between congenital (Q10.5x) and acquired stenosis.
• Ensure laterality is explicitly documented (left, right, or bilateral).
• Consider additional codes for any associated dacryocystitis (H04.3-) or other complications.