ICD-10 Code L74.5 – Focal Hyperhidrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L74.5 – Focal hyperhidrosis
What it is
L74.5 identifies focal hyperhidrosis, meaning excessive sweating limited to specific areas such as the palms, soles, underarms, or face. Use it when the record clearly documents localized overproduction of sweat.
Clinical signs
Typical findings include visible, recurrent sweating in one or more focal areas that is greater than expected for the situation. Clinical features vary; refer to documentation.
When to use this code
Use L74.5 when the clinician documents focal or localized hyperhidrosis as the diagnosis. It fits visits for persistent sweating that is not described as generalized, secondary, or due to another confirmed condition. Check documentation if the cause is unclear.
Do not use for
Do not use this code for generalized sweating, night sweats, or sweating clearly linked to another disorder or medication effect. If the note does not specify focal hyperhidrosis, check documentation.
Coding tip
Assign L74.5 only when the record states focal hyperhidrosis or clearly describes localized excessive sweating.