AHA Coding Clinic® for ICD-9 - 2004 Issue 4; VOLUMES 1 AND 2 NEW/REVISED DIAGNOSIS CODES

Hyperhidrosis

Effective October 1, 2004, unique codes have been created to report hyperhidrosis. Hyperhidrosis refers to a group of clinical disorders involving excessive sweating. Sweating is a natural phenomenon necessary to control body temperature during times of exercise and exposure to warm or hot surroundings. Sweating is regulated by the symphathetic nervous system. In approximately 1% of the population, this system may work at a very high activity level, much more than needed to keep a constant temperature. Hyperhidrosis may be classified according to the cause: primary or idiopathic (705.21) or secondary (705.22). Primary hyperhidrosis does not have...

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