ICD-10 Code H17.812 – Minor opacity of cornea, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H17.812 – Minor opacity of cornea, left eye
What it is
H17.812 identifies a minor corneal opacity in the left eye. It is used when the cornea has a small area of clouding or scar that may affect clarity.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include a visible corneal haze or scar on exam, with possible blur or light sensitivity if the opacity affects the visual axis.
When to use this code
Use this code when the provider documents a minor opacity or scar limited to the left cornea. It fits follow-up or problem-list documentation when the opacity is present but not described as dense, central, or causing major visual loss. Check documentation if laterality or severity is unclear.
Do not use for
Do not use this code for corneal edema, ulcer, active infection, or unspecified corneal opacity. If the record does not clearly state the left eye or the finding is more than minor, check documentation.
Coding tip
Assign H17.812 only when the left eye and minor corneal opacity are explicitly documented.