Unrecognised psychiatric and medical conditions can lead poorer health outcomes, lower health-related quality of life and increased mortality in people with autism, compared with the general population. A reasonable adjustment required in mainstream services is patient prioritisation by clinicians with knowledge and understanding of autism. Developed as part of the revised autism strategy, the recently developed autism competency framework lists the range of capabilities that psychiatrists who treat people with autism should have. Psychiatrists could lead the workforce transformation required to make the reasonable adjustments to mainstream mental health services needed to improve outcomes for people with autism.