Primary focal hyperhidrosis, unspecified

This code describes a chronic condition characterized by excessive, uncontrolled sweating that is not caused by an underlying medical condition or medication. It refers to primary hyperhidrosis where the specific anatomical location of the excessive sweating is not documented.

Use this code when documentation indicates primary hyperhidrosis without specifying the affected body region (e.g., axillary, palmar, plantar, craniofacial). This diagnosis is typically made after excluding secondary causes of hyperhidrosis through patient history and physical examination.

• Avoid using this code if the specific anatomical site of primary focal hyperhidrosis is documented; instead, use a more specific code from the L74.51 subcategory.
• Ensure documentation clearly states "primary" or "idiopathic" hyperhidrosis to differentiate from secondary hyperhidrosis (L74.4).
• Do not use this code for generalized hyperhidrosis, which is coded as L74.52.