ICD-10 Code L74 – Eccrine sweat disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L74 – Eccrine sweat disorders
What it is
L74 covers disorders of the eccrine sweat glands, the glands that help regulate body temperature through sweating. Use it when the record identifies an eccrine sweat gland problem rather than a broader skin condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include abnormal sweating patterns, reduced sweating, or excessive sweating related to eccrine gland dysfunction.
When to use this code
Use L74 when the clinician documents an eccrine sweat gland disorder and no more specific code is provided. It may apply when the note identifies sweat gland dysfunction, such as abnormal perspiration affecting eccrine glands. Check documentation if the exact subtype is unclear.
Do not use for
Do not use this code for general hyperhidrosis, heat-related illness, or conditions involving apocrine glands unless the record specifically states eccrine involvement. If the diagnosis is nonspecific, check documentation.
Coding tip
Code the most specific sweat disorder documented, and verify whether the provider names eccrine glands or a different cause of abnormal sweating.