ICD-10 Code H17.8 – Other corneal scars and opacities (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H17.8 – Other corneal scars and opacities
What it is
H17.8 identifies corneal scarring or opacity that is not classified elsewhere. Use it when the cornea has a visible scar, haze, or clouding affecting transparency.
Clinical signs
Findings may include corneal opacity, reduced clarity of the corneal surface, and visual disturbance. Clinical features vary; refer to documentation.
When to use this code
Use H17.8 when the provider documents an other or unspecified corneal scar or opacity and no more specific corneal disorder is named. It may apply after prior injury, infection, or inflammation if the record identifies residual scarring rather than an active process. Code the documented condition as written.
Do not use for
Do not use this code for active corneal ulcer, keratitis, or corneal dystrophy unless the record specifically describes residual scarring. Check documentation if the opacity is part of a different named corneal disease.
Coding tip
Confirm whether the provider is describing an active corneal condition or a residual scar, because that distinction determines the correct code.