ICD-10 Code H26.221 – Cataract secondary to ocular disorders (degenerative) (inflammatory), right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H26.221 – Cataract secondary to ocular disorders (degenerative) (inflammatory), right eye
What it is
This code identifies a cataract in the right eye that develops because of another ocular disorder, such as a degenerative or inflammatory eye condition. Use it when the documentation links the cataract to that underlying eye disease.
Clinical signs
Typical findings include lens opacity, blurred or cloudy vision, glare, and reduced visual acuity. Clinical features vary; refer to documentation for the specific ocular disorder and laterality.
When to use this code
Use H26.221 when the record states the cataract is secondary to an eye disorder and specifically involves the right eye. The source condition should be documented, such as a degenerative or inflammatory process affecting the eye.
Assign this code when the provider clearly identifies the cataract as secondary rather than age-related or traumatic. If the cause or eye laterality is unclear, check documentation before coding.
Do not use for
Do not use this code for age-related cataract, traumatic cataract, or cataract in another eye. If the record does not support a secondary ocular cause, check documentation.
Coding tip
Verify both the right-eye laterality and the documented underlying ocular disorder before assigning H26.221.