Just to clarify a few points about the NICE guidance for others reading.
NICE does not state that autism assessments must be psychiatrist-led. The guidance emphasises that assessments should be carried out by appropriately trained professionals with expertise in autism, which can include psychologists, psychiatrists, speech and language therapists, occupational therapists, and other qualified clinicians such as social workers who have specialist training and experience in autism assessment. Being a psychiatrist does not automatically confer specialist expertise in autism, just as other professions can develop substantial expertise through training and clinical experience.
NICE also recommends that assessments are multidisciplinary, meaning input from more than one clinician with relevant expertise. In practice, this often involves different clinicians completing different elements of the assessment – for example a developmental history (often using tools such as the ADI-R), observational assessment (such as the ADOS-2), and joint diagnostic formulation.
It’s also worth noting that NICE does not mandate specific tools. Instruments such as the ADOS-2 are widely used and recommended in many services, but they are not a requirement under NICE; clinical judgement, developmental history, observation and collateral information remain central to the diagnostic process.
In my own practice, whilst I follow NICE guidance, I have also developed my pathway in ways that I personally consider clinically robust. For example, I routinely include an ADOS as part of the assessment process, I do not conduct remote assessments for children under 12, and I ensure that different clinicians are involved in different parts of the assessment. None of those elements are mandated by NICE, but they are standards I have chosen to implement within my own service.