ICD-10 Code H18.039 – Corneal deposits in metabolic disorders, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.039 – Corneal deposits in metabolic disorders, unspecified eye
What it is
This code identifies corneal deposits linked to a metabolic disorder when the affected eye is not specified. Use it for documented corneal material buildup associated with an underlying metabolic condition.
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 H18.039 when the record states corneal deposits are due to a metabolic disorder and does not identify the eye involved. It is appropriate when the provider documents corneal involvement without a more specific corneal diagnosis. Check documentation if the cause is unclear.
Do not use for
Do not use this code for corneal deposits from trauma, infection, or nonspecific corneal opacity without a metabolic cause. If the eye is specified or a more exact code is available, choose that code instead.
Coding tip
Confirm both the metabolic etiology and the unspecified-eye documentation before assigning H18.039.