ICD-10 Code H26.2 – Complicated Cataract (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H26.2 – Complicated cataract
What it is
H26.2 identifies a cataract that develops as a complication of another eye condition or disorder. Use it when the lens opacity is secondary, not age-related or congenital.
Clinical signs
Patients may have blurred vision, glare, reduced contrast, or other visual disturbance. Clinical features vary; refer to documentation, especially for the underlying ocular disease causing the cataract.
When to use this code
Use H26.2 when the record clearly states complicated cataract or describes cataract secondary to another documented eye condition. It is appropriate when the clinician links the cataract to inflammation, trauma, or another ocular disorder. Code the underlying condition separately when documented.
Do not use for
Do not use this code for age-related cataracts, congenital cataracts, or cataracts due to systemic disease unless the record specifically supports a complicated cataract. Check documentation if the cause is unclear.
Coding tip
Look for the word “secondary” or a documented eye disorder causing the cataract before assigning H26.2.