ICD-10 Code H27.9 – Unspecified disorder of lens (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H27.9 – Unspecified disorder of lens
What it is
This code identifies a lens disorder when the chart does not specify the exact type. Use it for a documented abnormality of the crystalline lens that is not further described.
Clinical signs
Clinical features vary; refer to documentation. Lens disorders may be associated with blurred vision, visual distortion, or an abnormal lens finding on eye examination.
When to use this code
Use H27.9 when the provider documents a lens disorder but does not name a more specific condition. It is appropriate when the record says “lens disorder” or gives an unspecified lens abnormality. If the diagnosis is clearer elsewhere in the chart, code the more specific term instead.
Do not use for
Do not use this code for cataract, aphakia, or lens displacement when those conditions are documented. Check documentation if the lens problem is described by a specific named disorder.
Coding tip
Query for specificity before assigning H27.9, because a more precise lens diagnosis may be available.