Primary focal hyperhidrosis, palms

This code describes a chronic condition characterized by excessive and uncontrollable sweating specifically affecting the palms of the hands, without an underlying medical cause. It is a localized form of hyperhidrosis that is not secondary to another disease or medication.

Use this code when documentation clearly indicates primary (idiopathic) hyperhidrosis localized to the palmar surfaces. This diagnosis is typically made after ruling out secondary causes of hyperhidrosis. Supporting documentation should specify the affected body area as the palms.

• Ensure documentation specifies "primary" or "idiopathic" to differentiate from secondary hyperhidrosis.
• Verify the affected body site is explicitly stated as "palms" to avoid miscoding other focal hyperhidrosis sites.
• Do not use this code if the hyperhidrosis is a symptom of another underlying condition or medication side effect; instead, code the primary condition.