F65

F65, pronounced eff-sixty-five or eff-six-five, is an occasionally used term to describe a person, who suffers from a paraphilia or disorder of sexual preference.

The expression derives from the International Classification of Diseases (ICD-10)of the WHO, wherein the mental and behavioural disorders (psychiatric conditions) are classified "F" and F65 refers to the disorders of sexual preference. The term is often used as a euphemism, and sometimes in a derogatory fashion.

The F65 stem is subclassified as follows:

F65.0  Fetishism F65.1  Fetishistic transvestism F65.2  Exhibitionism F65.3  Voyeurism F65.4  Paedophilia F65.5  Sadomasochism F65.6  Multiple disorders of sexual preference F65.7  (not used) F65.8  Other disorders of sexual preference F65.9  Disorder of sexual preference, unspecified