International Experts Call for New 'Profound Autism' Diagnosis Category
A panel of international experts is advocating for the introduction of a new diagnostic category termed "profound autism" to address concerns that individuals with the most severe support requirements are being overlooked in healthcare services, research initiatives, and funding allocations. While acknowledging that autism awareness has significantly increased over the past two decades, the experts emphasize that more must be done to enhance life outcomes for those living with the disability.
Defining the Proposed Category
The proposed "profound autism" diagnosis, recommended by a Lancet-commissioned panel, would specifically apply to autistic children aged eight and older who exhibit little to no functional language skills, possess an IQ below 50, and require constant, round-the-clock supervision. Researchers assert that this definition aims to assist governments and service providers in more effectively planning and allocating resources for those with the most complex and demanding needs.
However, implementing this new category presents substantial challenges. The authors note in their journal article that meaningful change will depend on significant investments in scientific research focused on practical clinical issues, alongside the development of social and service systems that recognize both the potential for growth and the diverse, intricate needs of autistic individuals and their families.
Research Insights and Practical Findings
The recommendation is partly based on a recent Australian study that examined how the "profound autism" category might function in real-world settings. Analysing data from 513 children assessed for developmental conditions between 2019 and 2024, the study found that approximately 24 percent of autistic children met or were likely to meet the criteria for profound autism—a proportion consistent with international estimates.
The research also revealed that children in this group were more prone to exhibiting behaviours that pose safety risks. Nearly half had attempted to run away from caregivers, compared to about one-third of other autistic children. Importantly, the study highlighted that significant challenges were not exclusive to this proposed category; one in five children who did not meet the criteria engaged in self-injury, and over a third displayed aggression.
Alignment Issues and Implementation Concerns
A critical finding was that the proposed definition of profound autism did not consistently align with existing diagnostic "levels" used to determine support and funding. Some children who appeared to meet the criteria were classified at lower support levels, while others receiving the highest level of support did not fit the proposed definition. Researchers warn that this mismatch could complicate funding decisions unless the criteria are carefully adapted and introduced.
One practical concern centres on the proposed age threshold of eight years. Researchers suggest this age is useful because cognitive and communication abilities are considered more stable by that point. However, since most children are diagnosed before age eight, introducing this new category could necessitate repeat assessments for families, adding further strain to already overburdened diagnostic services.
Potential Benefits and Recommendations
Despite these hurdles, the study's authors believe the category could offer a clearer method for identifying those with the highest support needs—provided it is implemented cautiously and communicated using inclusive language that acknowledges each child's strengths as well as their challenges.
Including the category in future clinical guidelines could help ensure services are better planned and resourced, reducing the risk that children with the most complex needs fall through the gaps. The researchers also provided practical advice for parents who suspect their child is autistic and requires substantial support, urging families to:
- Clearly communicate safety concerns to healthcare professionals
- Seek guidance and support for the entire family unit
- Connect with other caregivers for shared experiences and advice
- Prioritize safety planning in collaboration with clinicians
With autism estimated to affect 78 million people globally, this proposed diagnostic shift represents a significant step toward more targeted and effective support systems for the most vulnerable individuals.
