ICD-10 Code H25.01 – Cortical age-related cataract (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H25.01 – Cortical age-related cataract
What it is
This code identifies a cataract in the lens cortex that develops with age. Use it when documentation states cortical age-related cataract and no other cataract type is the primary diagnosis.
Clinical signs
Typical findings include gradual blurred vision, glare, and reduced contrast, especially in bright light. Clinical features vary; refer to documentation.
When to use this code
Use H25.01 when the provider documents a cortical age-related cataract as the reason for the encounter or assessment. It may also apply when the chart clearly supports a cortical age-related cataract without another more specific cataract code. If the note says only “age-related cataract,” check documentation for the exact subtype.
Do not use for
Do not use this code for traumatic, congenital, or other non-age-related cataracts. If the record does not specify cortical involvement, check documentation.
Coding tip
Code the most specific cataract type documented, and query the provider if the subtype is unclear.