ICD-10 Code L74.511 – Primary focal hyperhidrosis, face (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L74.511 – Primary focal hyperhidrosis, face
What it is
Primary focal hyperhidrosis of the face means excessive sweating limited mainly to the facial area without an identified underlying cause. Use this code when the chart documents localized, primary sweating rather than generalized or secondary sweating.
Clinical signs
Typical findings include recurrent, visible facial sweating that is out of proportion to heat or activity. Clinical features vary; refer to documentation for location, severity, and whether other causes have been excluded.
When to use this code
Use L74.511 when the provider documents primary focal hyperhidrosis affecting the face and the record supports a localized pattern. It is appropriate for office visits, specialist evaluations, or problem lists when the facial sweating is the active diagnosis. Check documentation if the note does not clearly distinguish primary from secondary hyperhidrosis.
Do not use for
Do not use this code for generalized sweating, sweating due to fever, medications, endocrine disease, or other secondary causes. If the site is different or the diagnosis is uncertain, check documentation.
Coding tip
Confirm both the facial location and the primary nature of the condition before assigning L74.511.