Dr Moseley’s previous research identified the major driving factors behind a higher suicide risk included stigma faced by autistic people and being missed for diagnosis in childhood.
“Negative encounters in healthcare” also emerged as contributing to suicide risk.
“A major theme from participants was the need to improve autism diagnostic services, ensuring that autistic people not diagnosed in childhood are assessed accurately, quickly and with sensitive post-diagnostic care,” Dr Mosley said.
The report also called for inequalities faced by autistic people in education, employment and healthcare to be tackled.
It said “appropriate support in the community” was needed to improve inclusion of autistic people within society.
Last month Health Secretary Wes Streeting admitted the NHS was “falling short” on meeting demand for adult autism and ADHD diagnosis.
Streeting launched an independent review last year into rising demand for mental health, ADHD and autism services in England.