Primary focal hyperhidrosis
ICD-10 L74.51 is a used to indicate a diagnosis of primary focal hyperhidrosis.
Primary focal hyperhidrosis is a condition characterized by excessive sweating localized to specific areas of the body, most commonly the palms, soles, axillae, and face. This condition is thought to be due to hyperactivity of the sympathetic nervous system, leading to overproduction of sweat in response to stimuli that would not typically provoke such a response. The clinical presentation often includes episodes of sweating that can be triggered by heat, stress, or even without any identifiable triggers. The anatomy involved primarily includes the sweat glands, particularly the eccrine glands, which are responsible for thermoregulation. Disease progression can vary; while some patients may experience symptoms throughout their life, others may see a decrease in severity with age. Diagnostic considerations include a thorough patient history, physical examination, and, in some cases, the use of quantitative sudomotor axon reflex test (QSART) to measure sweat production. It is essential to differentiate primary focal hyperhidrosis from secondary causes of hyperhidrosis, which may indicate underlying medical conditions.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
L74.51 specifically covers primary focal hyperhidrosis, which includes excessive sweating localized to areas such as the palms, soles, axillae, and face without an identifiable secondary cause.
L74.51 should be used when the sweating is localized and not due to an underlying medical condition. If the hyperhidrosis is secondary to another condition, such as hyperthyroidism or diabetes, then a different code should be used.
Documentation should include a detailed patient history, physical examination findings, and any diagnostic tests performed, such as QSART, to establish the diagnosis of primary focal hyperhidrosis.
