Primary focal hyperhidrosis, axilla

This code signifies excessive, spontaneous sweating primarily affecting the underarms, without an underlying medical cause. It is a chronic condition where the sweat glands in the axillary region are overactive.

Apply this code when documentation clearly indicates a diagnosis of primary (idiopathic) hyperhidrosis specifically localized to the axillae. Supporting documentation should rule out secondary causes of hyperhidrosis.

• Ensure the documentation specifies "primary" or "idiopathic" to differentiate from secondary hyperhidrosis.
• Verify the affected body site is explicitly stated as "axilla" to avoid miscoding other focal hyperhidrosis sites.
• Do not use this code if the hyperhidrosis is generalized or due to another medical condition (e.g., thyroid disorder, menopause).