ICD-10 Code H11.10 – Unspecified conjunctival degenerations (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.10 – Unspecified conjunctival degenerations
What it is
H11.10 identifies a disorder of the conjunctiva, the thin membrane covering the white of the eye and inner eyelids, when the specific degenerative change is not documented. Use it when the chart says conjunctival degeneration but does not name the type.
Clinical signs
Clinical features vary; refer to documentation. Conjunctival degeneration may be noted on eye examination as a visible surface change, often described by an eye care clinician without a more specific subtype.
When to use this code
Use this code when the provider documents conjunctival degeneration and does not specify a more precise diagnosis. It is appropriate for nonspecific charting, incomplete ophthalmology notes, or referral records where the exact degenerative condition is not stated.
If the record identifies a named conjunctival lesion or another eye disorder, code that diagnosis instead. You should support the choice with the provider’s wording and avoid assuming a subtype from appearance alone.
Do not use for
Do not use H11.10 for clearly documented conjunctival disorders with a specific diagnosis. Check documentation if the condition is inflammatory, infectious, traumatic, or otherwise not a degeneration.
Coding tip
Code H11.10 only when the documentation supports degeneration but leaves the exact conjunctival type unspecified.