ICD-10 Code H26.229 – Cataract secondary to ocular disorders (degenerative) (inflammatory), unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H26.229 – Cataract secondary to ocular disorders (degenerative) (inflammatory), unspecified eye
What it is
This code identifies a cataract that develops because of another eye disorder, such as a degenerative or inflammatory condition, when the affected eye is not specified. Use it when the record supports a secondary cataract but does not name the side.
Clinical signs
Typical findings include progressive blurred vision, glare, reduced contrast, and lens opacity on eye examination. Clinical features vary; refer to documentation for the underlying ocular disorder and whether the cataract is linked to degeneration or inflammation.
When to use this code
Use H26.229 when the provider documents a cataract caused by a nontraumatic ocular disorder and the eye is not identified. It is appropriate when the note specifies degenerative or inflammatory eye disease as the cause. Check documentation if the cataract is described only as age-related or congenital.
Do not use for
Do not use this code for unspecified cataract without an underlying ocular disorder, or when the cataract is traumatic, congenital, or age-related. If the affected eye is documented, choose the laterality-specific code instead.
Coding tip
Confirm both the cause and laterality in the ophthalmology note before assigning H26.229.