ICD-10 Code L85.0 – Acquired ichthyosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L85.0 – Acquired ichthyosis
What it is
Acquired ichthyosis is a dry, scaly skin condition that develops after normal skin was previously intact. It is not the inherited form and usually reflects an underlying disorder or medication effect.
Clinical signs
You may see generalized skin dryness with fine, polygonal scaling, often most noticeable on the legs or trunk. Clinical features vary; refer to documentation for the cause and extent.
When to use this code
Use L85.0 when the provider documents acquired ichthyosis as the diagnosis or describes scaly, ichthyotic skin acquired later in life. Code it when the record supports an acquired condition rather than a congenital ichthyosis. If the note links the finding to another disease, follow the documented diagnosis and sequence codes as instructed.
Do not use for
Do not use this code for congenital or hereditary ichthyosis, or for simple dry skin without ichthyotic scaling. Check documentation if the record only states “xerosis” or a nonspecific rash.
Coding tip
Look for the word “acquired” and any documented underlying cause before assigning L85.0.