The classification of a diagnosis is closely related to its conceptualization. This is very clear if we look at changes that have been made in classification systems such as the Diagnostic and Statistical Manual of Mental Disorders (DSM) of the American Psychiatric Association (APA) and International Classification of Diseases and Health Related Problems (ICD) of the World Health Organization (WHO). In this article we will discuss the changes in classification of gender identity-related conditions over time, and indicate how these changes were associated with the changes in conceptualization. As DSM-5 has already been published, and the ICD-11 is expected to be published in 2017, and many of the conceptual issues are similar for both classification systems, this paper will focus primarily on the DSM.
Over the years, terminology has frequently been changed. If identities or behaviours are not in line with a personâs natal sex, we will use the term âgender incongruentâ; âtransgenderâ will be used as an umbrella term to refer to all kinds of phenomena related to gender incongruence. It is a broader category than the well-known term âtranssexualâ.
The concepts of gender identity and gender dysphoria
Each adult individual has a number of identities, such as a national, racial, or professional identity (Kroger, 2007). One of the most fundamental and probably more stable identities is oneâs gender identity. Gender identity refers to the extent to which people experience themselves to be like others of one gender. Feeling male or female is an important basis for interactions with others. Gender identity is usually expressed in a personâs gender role behaviour. Gender role concerns behaviours, attitudes, and personality traits which, within a given society and historical period, are typically attributed to, expected from, or preferred by individuals of one gender.
In most cases, gender identity and physical sex characteristics are congruent. A baby with male genitalia will be assigned to the male gender, and experience himself as male. Incongruence between the physical characteristics does occur, however, in some conditions. Disorders/differences of sex development (DSD) are congenital conditions in which the development of chromosomal, gonadal, or anatomical sex is atypical (Hughes et al., 2006). For instance, external female appearing genitalia may exist in a person with testes and 46 XY chromosomes. In such cases, the child is usually raised as a girl and has a female gender identity. Her identity thus will not be in line with some of her physical sex characteristics.
If a person experiences distress resulting from incongruence between gender identity and assigned gender (which happens usually at birth), this person is gender dysphoric. Gender dysphoric individuals may have DSD, but mostly have physical sex characteristics which all correspond with each other.
In their clinical research on DSD individuals, Schweizer and colleagues (2009) used an instrument that not only measures male and female gender identity, but also transgender identity and the certainty of belonging to a gender. Gender identity has become an increasingly complex concept. Both clinical researchers and cognitive developmental psychologists have made use of the concept of gender identity. At first, they mainly focused on cognitive components of gender identity (Fagot & Leinbach, 1985; Kohlberg, 1966; Ruble & Martin, 1998). More recently, researchers in this field gave more attention to affective components of gender identity, such as feelings of contentment with oneâs gender (Egan & Perry, 2001), and they started studying its relationship with mental health. They also considered pressure felt for âgender conformityâ and compatibility felt with aspects of gender identity. Tobin et al. (2010) proposed a five-dimensional model, subdivided into: âmembership knowledge of a gender category, gender centralityâ (the importance of gender to other identities), âgender contentednessâ, âfelt gender conformityâ, and âfelt gender typicalityâ, to conceptualize gender identity.
In clinical psychology and psychiatry, individuals who experienced distress because they did not identify with their assigned gender used to be known as âtranssexualsâ (WHO, 1992) or individuals with a âgender identity disorderâ (GID) (APA, 2000). Recently the name of the diagnosis changed to âgender dysphoriaâ (APA, 2013).
For more than a decade, the dimensionality and diversity of gender identity and gender problems have received increasing attention in the literature (e.g. Fausto-Sterling, 2000). It has been argued that individuals with gender incongruence do not necessarily experience a complete cross-gender identity, and may not always need clinical attention (e.g. Diamond & Butterworth, 2008; Lee, 2001). The gender identification of individuals now covers a wide spectrum of gender identity labels, such as; âthird genderâ, âpan-/poly-/or omnigenderedâ or âgender fluidâ, instead of âmaleâ and âfemaleâ or even âtranssexualâ. These individuals may or may not experience distress and they may or may not want to live as the âother genderâ (see Cohen-Kettenis & Pfäfflin, 2010, for an overview). In case of conditions other than âclassicalâ transsexualism, treatment preferences may also differ from the standard hormone treatment and gender-related genital surgeries. Those who do not suffer from their gender incongruence are often called âgender variantâ.
Until about 20 years ago, transgender phenomena were usually considered as psychopathological. Krafft-Ebing (1886) and Hirschfeld (1923), both psychiatrists, were among the first to describe individuals who wanted to live or were living as members of the other sex. Hirschfeld was also the first to refer gender dysphoric individuals for surgery (hormone treatment only became available in the 1950s). Many medical and mental health practitioners criticized the use of hormones and surgery as a solution to gender identity problems (e.g. McHugh, 1992), as they considered gender dysphoria a severe neurotic or a psychotic, delusional condition in need of psychotherapy and âreality testingâ. The huge media attention for the transition of some individuals, such as Christine Jorgenson (a natal male who sought treatment in Europe and published her story), resulted in more psychiatric awareness of the concepts of gender dysphoria and the desire of gender dysphoric people to transition. Interest in studying the phenomenon also increased in professional circles. It was acknowledged that sexual orientation and transvestism had to be distinguished from transsexualism (as it was then called), and in 1975 and 1980 transsexualism was included in the ICD-9 and DSM-III, respectively. More recently the conceptualization of gender dysphoria (or gender incongruence as it will probably be called in the ICD-11) as a psychiatric condition has been challenged (Drescher, 2015; Drescher et al., 2012) (see below).
Overview of gender identity diagnoses in DSM and rationale for changes
The main changes and rationales for the successive DSM editions are described below. For each new edition of DSM, first the general changes are described, followed by a description of the changes that were specific to the gender identity diagnoses. Table 1 provides an overview of the diagnostic terms, codes, sections and main changes of gender identity diagnosis across the different DSM versions.
Table 1. Overview of the diagnostic terms, codes, sections and main changes of gender identity diagnosis across different DSM versions.
DSM version | Diagnostic term (and code) | Section | Main changes |
DSM-III (1980) | Transsexualism (302.5x) GIDC (302.60) Atypical GID (302.85) | Psychosexual disorders | First descriptive, symptom-based diagnosis for transsexualismInclusion of a childhood diagnosis |
DSM-III-R (1987) | Transsexualism (302.50) GIDC (302.60) GIDAANT (302.85) GIDNOS (302.85) | Disorders usually first evident in infancy, childhood, or adolescence | Inclusion of GIDAANTNew placement in section: Disorder usually first evident in infancy, childhood, or adolescence |
DSM-IV (1994)/ DSM-IV-TR (2000) | GID in adolescents or adults (302.85) GIDC (302.6) GIDNOS (302.6) | Sexual and gender identity disorders | Placement in the new section âsexual and gender identity disordersâAdoption of the single diagnosis of GID that applied to children, adolescents, and adults Criteria became more similar for boys and girls |
DSM-5 (2013) | GD in adolescents or adults (302.85) GD in children (302.6) Other specified gender dysphoria (302.6) Unspecified gender dysphoria (302.6) | Gender dysphoria | Name change and different placement into new GD section Narrower criteria for children Broader criteria for adults Focus on distress/dysphoria as the clinical problem and not on identity per se |
GD, gender dysphoria; GID, gender identity disorder; GIDAANT, gender identity disorder of adolescence and adulthood, nontranssexual type; GIDC, gender identity disorder of childhood; GIDNOS, gender identity disorder not otherwise specified.