F63.3
Trichotillomania
Coding guidance (WHO 2019)
A disorder characterized by noticeable hair-loss due to a recurrent failure to resist impulses to pull out hairs. The hair-pulling is usually preceded by mounting tension and is followed by a sense of relief or gratification. This diagnosis should not be made if there is a pre-existing inflammation of the skin, or if the hair-pulling is in response to a delusion or a hallucination. Excl.: stereotyped movement disorder with hair-plucking (F98.4)