ICD-10 Code L74.512 – Primary focal hyperhidrosis, palms (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L74.512 – Primary focal hyperhidrosis, palms
What it is
This code identifies primary focal hyperhidrosis limited to the palms. It means excessive sweating of the hands without an underlying systemic cause, and the problem is localized rather than generalized.
Clinical signs
Typical findings include visibly damp or dripping palms, frequent hand moisture, and symptoms that interfere with gripping or routine activities. Clinical features vary; refer to documentation.
When to use this code
Use L74.512 when the provider documents primary focal hyperhidrosis affecting the palms and excludes secondary causes. Apply it for chronic palmar sweating recorded as the main diagnosis or a relevant comorbidity. Check documentation if the note does not clearly state the site or whether the condition is primary.
Do not use for
Do not use this code for generalized sweating, axillary or plantar hyperhidrosis, or sweating due to another medical condition or medication. Check documentation.
Coding tip
Confirm both “primary” and “palms” in the record before assigning L74.512.