<prompt> A 25 years old male is not happy with its gender and is always in distress due to this. He wants to change sex and have a vagina. It comes under which of the following psychiatric disorders?TranssexualismDual role transvestismGender dysphoriaSexual maturation disorder  <response>: Ans-AExpl- The International Classification of Diseases ICD-10 list several disorders related to gender identity:Transsexualism F64.0: Desire to live and be accepted as a member of the opposite sex, usually accompanied by a desire for surgery and hormonal treatmentGender identity disorder of childhood F64.2: Persistent and intense distress about ones assigned gender, manifested prior to pubertyOther gender identity disorders F64.8Gender identity disorder, unspecified F64.9Sexual maturation disorder F66.0: Uncertainty about ones gender identity or sexual orientation, causing anxiety or distressSignificant revision of the ICDs classification of gender-identity-related conditions is expected in the forthcoming ICD-11. As of August 2018, the ICD-11 lists this condition as gender incongruence, under conditions related to sexual health, coded into three conditions:Gender incongruence of adolescence or adulthood HA60: replaces F64.0Gender incongruence of childhood HA61: replaces F64.2Gender incongruence, unspecified HA6Z: replaces F64.9In addition, sexual maturation disorder has been removed, along with dual-role transvestism. ICD-11 defines gender incongruence as a marked and persistent incongruence between an individuals experienced gender and the assigned sex, with presentations similar to the DSM-V definition, but does not require significant distress or impairment. 