Autism diagnosis inflation

Since the early descriptions by Kanner and Asperger, the diagnosis of autism has evolved from a narrowly defined disorder to a broad spectrum. The revision of the diagnostic criteria for autism spectrum disorders (ASD) in the DSM-5 has far-reaching implications for the diagnosis, support and social perception of neurodiverse people.

The diagnostic trap: von categorical to dimensional models: What originally began as an attempt to standardize diagnostic categories and make it easier for those affected to access support has, for many, turned into a Diagnostic trap a system that leads to great confusion, blurs boundaries, shapes identities and encourages frequent misclassifications. The change in the concept of autism and the cultural revaluation of mental diagnoses as a whole have created a situation in which diagnoses have become coveted, politicized, unstable and contradictory (Bogdashina 2010, 2016). Neurodiversity-sensitive Researchers (Walker, 2021; Kapp, 2020) also criticize the fact that the reform has led to both a neglect of individual perception profiles and diagnostic shifts.

1. emphasis on the deficit model: The DSM-5 states Deficits in social communication and repetitive behavior patterns at the center. Some specialist authors describe this as too one-sided, as neurodiverse perceptual styles and strengths are hardly taken into account.

2. from clear categories to fuzzy „spectrum“ diagnosis: With the DSM-5 (2013), the previous system of „pervasive developmental disorders“ (including autistic disorder, Asperger's syndrome, atypical autism, PDD-NOS) was replaced by a single category, autism spectrum disorder. Autism Spectrum Disorder (ASD), was abandoned. The aim was to create diagnostic clarity and consistency: a spectrum should enable gradations and avoid the artificial separation of „high“ and „low“ functioning. The switch to a dimensional model was intended to map severity levels and support needs more transparently (Lord et al., 2020).

3. reduction of diagnostic differentiation: In practice, however, the opposite occurred: a Conceptual leveling, which leveled out essential differences and introduced diagnostic criteria that are so blurred that they can hardly be used to make a clear distinction.

The introduction of the Social (Pragmatic) Communication Disorder (SPCD). This diagnosis should catch children who have social communication problems but do not show the pattern of „restricted and repetitive behaviors“ of autism. In reality, the boundary between SPCD and ASD is extremely unstable: the smallest differences in the subjective interpretation by the diagnostician, such as whether a repetitive behavior is „sufficiently pronounced“, can determine whether someone is considered „autistic“ or not. This decision has far-reaching consequences for performance, support and self-image.

Diagnostic vacuum within the autistic spectrum

Instead of clarity, a gray area has emerged that encourages misclassification and drives a growing number of adults into a diagnosis that for many is more of a catch-all than a precise description. As a consequence of the amalgamation, some individuals no longer meet the new criteria, even though their support needs have remained the same (Gibbs et al., 2012; McPartland et al., 2012). At the same time, diagnosis rates elsewhere continue to rise (Hansen et al., 2015). Bogdashina (2016) describes this simultaneous narrowing and widening as „diagnostic vacuum“ within the spectrum.

 

Central points of criticism of the DSM-5 logic/ DSM-5 system 

1. The reduction to behavioral symptoms: While the DSM-5 explicitly includes sensory characteristics for the first time, the focus on observable behavioral symptoms remains. However, many authors emphasize the central role of sensory processing in understanding autistic lifeworlds (Bogdashina, 2010; Robertson & Simmons, 2015). A purely behavioral model therefore falls short (Happé et al., 2020).

2. The role of subjective interpretations: Diagnoses depend not only on the characteristics of the child, but also on institutional conditions, care structures and the expertise of the professionals (Lord et al., 2020).The DSM-5 criteria offer great scope for interpretation in diagnostic terms (Smith et al., 2020), which leads to

• Regionally varying diagnosis rates
• subjective assessments and decisions
• and increased use of third-party variables (e.g. access to benefits).

3. Diagnostic „narrowing“ and „widening“ at the same time: The diagnostic criteria are partly too unspecific and partly too restrictive:

• Some people lose their previous diagnosis (e.g. Asperger's), although their support needs remain.
• At the same time, the number of diagnoses is increasing for people with less clear symptoms. This paradoxical situation contributes to the perception of a diagnostic „vacuum“ 

4. Diagnostic inflation and social pressure: Rising diagnosis rates are often described as an „epidemic“ in the public debate. However, scientific analyses show that this increase is more likely to be due to changes in criteria, increased awareness and the desire for supportive legal orientation (Hansen et al., 2015; King & Bearman, 2009). The increased awareness of autism, social pressure to explain developmental differences and the demand for educational and therapeutic resources are causing diagnostic inflation and risk distorting the perception of autistic people and reinforcing stereotypical ideas. Diagnoses are increasingly being used to reduce complexity or ensure access to support measures (Bogdashina (2016).

5. The „Grandfather Clause“: two diagnostic systems at the same time: A particularly momentous step in the DSM-5 was the so-called „Grandfather Clause“All persons who had received a diagnosis from the DSM-IV spectrum before 2013 (Autistic Disorder, Asperger's, Atypical Autism, PDD-NOS) were automatically classified as having ASD, regardless of whether they met the new criteria at all.

This means that de facto Two parallel diagnostic systems:

• People with old diagnoses automatically retain their autism status
• People who are examined after 2013 must meet the new, and in some cases much stricter, criteria

This leads to striking injustices: Two people with almost identical behavioral profiles can have different diagnoses and therefore different claims for support, depending solely on the time of their initial diagnosis. This is particularly explosive for former PDD-NOS diagnoses, many of which, according to today's understanding, would fit better with Social (Pragmatic) Communication Disorder (SPCD).

To make matters worse, for years PDD-NOS contained an editorial error in DSM-IV - a misplaced „or“ instead of „and“ - which allowed diagnoses to be assigned without evidence of social interaction problems. These diagnostic errors were also transferred to the DSM-5 on a quasi-permanent basis through the Grandfather Clause.

This reveals a structural problem: the DSM can not only generate errors, but also confirm them itself through its rules and errors. 

6. The diagnostic boom in adults: Trauma, personality and checklists: The changes in the DSM came up against a society that is increasingly thinking in terms of diagnoses. This created a Rapid increase in autism diagnoses among adults. Many of these are controversial because they are often

• without sufficient childhood history
• with checklist-based diagnostics
• and neglecting differential diagnoses.

 

Autism: a neurodevelopmental disorder with an early onset

However, autism is by definition a Neurodevelopmental disorder with early onset. If development reports, school documents or reports of early abnormalities are missing, the risk increases dramatically that phenomena such as Complex trauma sequelae, social anxiety, borderline or avoidant personality disorders can be misinterpreted as autism.

Traumatic experiences, including experiences of flight and migration, can also lead to behaviors that superficially look like „masking“ or social overload, and personality disorders can create stable patterns that easily appear on checklists as „autistic traits“ (xxx van der Kolk). These confusions are further reinforced by popular online tests and the high media visibility of autism.

The result is a diagnostic cycle:
More diagnoses → larger identification groups → more visibility → more diagnoses.
This makes criticism culturally and politically increasingly difficult, as diagnoses legitimize identities and resources.

  

The question of „clinical relevance“ and the conflict with neurodiversity

The DSM-5 requires evidence of „clinically significant distress or loss of function“. Theoretically, this should prevent mere individual differences or perceptual peculiarities from immediately being considered a disorder.

At the same time, however, this contradicts parts of the neurodiversity movement, which understands autism not as a deficit but as an identity. This creates a paradoxical area of tension:

• MedicineDiagnosis only in case of suffering/impairment
• Identity politics: Recognition without a deficit concept

This tension makes the diagnostic system unstable and leads to conflicts over recognition, self-definition and the boundaries of the concept of autism.

Overdiagnosis and diagnostic culture in a wider context

Autism is not the only diagnosis that is experiencing a massive expansion. Diagnoses such as ADHD also show how definitional elasticity leads to increasing prevalence. We are increasingly living in a „Age of Diagnosis“ (O'Sullivan) - a culture in which medical terms shape social patterns of interpretation and everyday problems quickly become clinical entities.

There are two sides to this development: It allows suffering to be made visible - but it also pathologizes normal differences and puts a strain on healthcare systems. In this field of tension, calls for „Dediagnosing“, in other words, the deliberate withdrawal of diagnoses that are of no benefit or do more harm than good.

 

Consequences for diagnostics, support and families

The diagnosis trap has real consequences for those affected, professionals and care systems. The vagueness of the criteria makes it difficult for parents and professionals to find their way around:

• What does a diagnosis still mean today?
• How can support measures be planned in line with demand?
• Which individual profiles are not adequately covered by the DSM-5 criteria?

1. Effects on parents and educational professionals: Parents are confronted with contradictory messages: On the one hand, diagnoses have become more blurred; on the other hand, they are gaining in importance due to institutional requirements (Kapp, 2020). The increased social attention often leads to an early desire for diagnosis, which in turn can create uncertainty, e.g. parents are increasingly worried about a possible autism diagnosis even before their child is born.

2. Emerging gaps in care, inadequate care and inequality of resources: The diagnostic shifts create both gaps and overloads in the care system.

• Some people drop out of support programs even though there is still a need.
• People who do not need autism-related support still receive it, while others who are severely impaired receive too little or delayed help.
• Sensory processing peculiarities and individual perceptual styles are only marginally mentioned in the DSM-5, although they are central to the everyday experience of many autistic people (Bogdashina 2010 ...xxx)
• Resources are diluted, research is made more difficult because studies are increasingly investigating heterogeneous, unclear samples.

Many previously clearly assignable support services are now more difficult to justify if people no longer clearly fit into categories (Bölte et al., 2019). At the same time, increasing demand and a shortage of resources are leading to longer waiting times and an overload of diagnostic services.

3. Burden on identity: For many, the ASD diagnosis is not just a medical category, but a central part of their self-image. This makes it difficult to reassess later on:

• Withdrawing a misdiagnosis can be seen as Loss of identity be experienced.
• At the same time, a diagnosis can also define people and restrict their scope for action.

The interplay of illness, disability, individual differences and identity makes autism a highly political field, and diagnoses more than just clinical assessments.

4. Professional disincentives: Diagnosticians work in systems that reward quick decisions and do not provide for the revision of given diagnoses. Errors are rarely acknowledged; overdiagnoses can persist for years because there are hardly any structured procedures for reassessment.

5. Uncertainty in everyday educational and therapeutic work: Professionals are finding it increasingly difficult to derive concrete conclusions for support planning from a broader spectrum category (Lord & Bishop, 2015). Individual profiles are easily obscured by the generalized spectrum category, although specific perceptual styles and sensory aspects are crucial for educational and therapeutic practice (Robertson & Simmons, 2015; Bogdashina, 2010).

 

Ways out of the diagnosis trap: What reform should mean

A meaningful approach to diagnosis and support services requires a diagnostically reflective attitude on the part of professionals with regard to the limitations of diagnostic systems (Walker, 2021).

The spectrum as a vacuum, which favors over- and underdiagnosis

The reorganization of the diagnostic structure in the DSM-5 was intended to create order. Instead, it has created a vacuum into which the most diverse forms of human need and individual characteristics are sucked, without the system being able to adequately distinguish between them or distribute care fairly. While the spectrum concept promises greater flexibility in theory, in practice it creates a diagnostic vacuum that favors both over- and under-diagnosis.

Autism has become a term that simultaneously means too much and too little: a catch-all for very different phenomena, an anchor for identities, an access code for services and support measures, and a risk factor for misdiagnosis.

Defusing this diagnostic trap requires more than technical adjustments. It requires a culture that understands diagnoses as provisional tools, not as final truths; a practice that corrects mistakes; and a system that supports people according to their actual needs. For educational and therapeutic practice, this means using diagnostic categories critically, reflectively and always with a view to individual development paths. Only then can difference be understood as difference again, and not automatically as a disorder.

 

Interdisciplinary diagnostics, systemic cooperation and reflective competence

The complexity of diagnostics makes multi-professional teams indispensable (Bölte et al., 2019). Through the exchange between education, therapy, psychology and medicine, diagnoses can be contextualized and support decisions can be systemically coordinated, i.e. high-quality diagnostics are required:

• Multi-professional cooperation
• culturally and context-sensitive approach
• as well as a clear separation between scientific diagnostics and socio-political support logics

 

Resource-oriented work with individual profiles

While the current strictly deficit-oriented models lead to reduced perspectives, a resource-oriented diagnosis should take into account sensory processing, communication patterns and strength profiles (Bogdashina, 2010; Kapp, 2020) as well as social environment and historical variables (epigenetics). For professional practice, this means critically reflecting on diagnostic categories and focusing on the individuality of each child.

Such profiles enable tailored support planning that is less oriented towards clinical categories and more towards individual needs, i.e. in educational and therapeutic contexts, the focus should be more on the individual:

• Strength profiles
• individual learning paths
• and neurodiverse competencies.

 

Diagnoses as provisional orientation aidsfen

Diagnoses should be understood as a starting point, not as a final description. The neurodiversity-sensitive perspective emphasizes that diagnostic categories are social constructions that do not reflect the entire developmental potential of a child, but always also reflect social, professional and political dimensions.

1. Development history as a duty: fFor adult ASD diagnoses, the childhood history must become central again - not optional.

2. Structured reassessment procedures: People should have access to low-threshold, transparent reassessments without fear of stigmatization or withdrawal of benefits.

3. Support according to need, not according to label: Many problems arise because help is tied to diagnoses. A functional system should link support to Concrete impairments not to the label „autism“.

4. Institutional responsibility: Errors - including historical ones such as the PDD-NOS typo - must be dealt with openly. The DSM is not a neutral document, but a political and scientific product.

5. Better research: What is needed are studies that

• Differentiating autism from trauma and personality patterns
• Tracking developmental trajectories across the lifespan
• Critically evaluate diagnostic instruments