ICD-10 Code H18.031 – Corneal deposits in metabolic disorders, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.031 – Corneal deposits in metabolic disorders, right eye
What it is
This code identifies corneal deposits caused by an underlying metabolic disorder in the right eye. Use it when the chart documents corneal involvement linked to a metabolic condition, not a separate corneal disease.
Clinical signs
Findings may include visible corneal opacities or deposits noted on eye examination. Clinical features vary; refer to documentation for the specific metabolic disorder and laterality.
When to use this code
Use H18.031 when the provider documents corneal deposits in the right eye and attributes them to a metabolic disorder. It is appropriate for ophthalmology, endocrinology, or consultation notes that clearly connect the corneal finding to the metabolic condition.
Assign it only when the right eye is specified. If the record mentions both eyes, use the bilateral code instead; if laterality is not stated, check documentation.
Do not use for
Do not use this code for corneal deposits without a documented metabolic cause. Also avoid it when the corneal finding is in the left eye, both eyes, or unspecified laterality.
Coding tip
Always verify both the metabolic cause and laterality before assigning H18.031.