ICD-10 Code L85.1 – Acquired keratosis [keratoderma] palmaris et plantaris (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L85.1 – Acquired keratosis [keratoderma] palmaris et plantaris
What it is
This code describes acquired thickening of the skin on the palms and soles. It is used when the keratoderma develops after birth rather than being present from childhood.
Clinical signs
Typical findings include diffuse or localized hyperkeratosis, with rough, thickened, sometimes fissured skin on the palms, soles, or both. Clinical features vary; refer to documentation.
When to use this code
Use L85.1 when the provider documents acquired palmar and/or plantar keratoderma, including nonspecific palmoplantar thickening. You may also use it when the note identifies keratosis of the palms and soles without naming a more specific cause. Check documentation if an underlying disorder is stated.
Do not use for
Do not use this code for congenital palmoplantar keratoderma or for other clearly specified skin diseases. If the record links the thickening to another diagnosis, code that condition instead when instructed.
Coding tip
Confirm the word “acquired” in the chart, because congenital and secondary causes may require different coding.