ICD-11 definition : Hair loss in which there is irreversible damage to the hair follicle from inflammation,
infection malignant infiltration or trauma, resulting in destruction of the follicle
and repair by fibrosis. Regeneration does not occur once the follicle has been destroyed.;
Hair loss in which there is irreversible damage to the hair follicle from inflammation,
infection malignant infiltration or trauma, resulting in destruction of the follicle
and repair by fibrosis. Regeneration does not occur once the follicle has been destroyed.