ICD-10 Code H17.819 – Minor opacity of cornea, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H17.819 – Minor opacity of cornea, unspecified eye
What it is
This code identifies a minor corneal opacity, or small area of clouding, in an unspecified eye. Use it when the record documents corneal haze or scar without a more specific eye designation.
Clinical signs
Findings may include a visible corneal opacity on exam, mild corneal scarring, or localized haze affecting the cornea. Clinical features vary; refer to documentation.
When to use this code
Use H17.819 when the provider documents minor opacity of the cornea and does not specify right or left eye. It also fits when the note describes a small corneal scar or clouding without further detail. Check documentation if the cause or laterality is recorded elsewhere.
Do not use for
Do not use this code for major corneal opacity, active corneal disease, or conditions with a more specific diagnosis. Do not assign it when the record clearly identifies the affected eye.
Coding tip
Verify laterality in the chart first; if the eye is specified, choose the laterality-specific code instead of the unspecified-eye code.