ICD-10 Code L74.9 – Eccrine Sweat Disorder, Unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L74.9 – Eccrine sweat disorder, unspecified
What it is
L74.9 identifies an unspecified disorder of the eccrine sweat glands, which are the body’s main sweat-producing glands. Use it when the record documents an eccrine sweat problem but does not name a more specific condition.
Clinical signs
Clinical features vary; refer to documentation. Records may describe abnormal sweating, reduced sweating, or another eccrine gland dysfunction without enough detail to assign a more specific code.
When to use this code
Use L74.9 when the clinician documents an eccrine sweat gland disorder but does not specify the type, site, or cause. It is appropriate when the note is limited to an unspecified sweating abnormality and no clearer diagnosis is available. Check documentation before coding a more specific sweating disorder.
Do not use for
Do not use this code when the record identifies a different sweat gland disorder, such as apocrine involvement, or a clearly named condition. If the documentation is incomplete, check documentation rather than assuming L74.9.
Coding tip
Query for the exact sweat disorder when the note only says “sweating problem,” because a more specific code may be available.