Acquired keratosis [keratoderma] palmaris et plantaris

This code describes a non-hereditary thickening of the skin on the palms of the hands and soles of the feet. This condition is characterized by hyperkeratosis, which can manifest as diffuse or focal areas of hardened skin. It is an acquired condition, meaning it develops later in life rather than being present at birth or inherited.

Use this code when documentation clearly indicates a patient has developed keratosis palmaris et plantaris that is not congenital or familial. This diagnosis is typically supported by a physician's clinical assessment and observation of the characteristic skin changes. It is often associated with other underlying conditions or environmental factors.

• Ensure documentation explicitly states "acquired" or rules out a hereditary cause to differentiate from Q82.8.
• Look for associated conditions or causes that might require additional coding, such as drug reactions or internal malignancies.
• Do not use this code if the patient's medical history indicates a genetic predisposition or family history of keratoderma.