About Autism Diagnosis Adult What will happen after the assessment? At the point of diagnosis you should receive a written report which explains the findings of the assessment and the reasons for any conclusions drawn. You may be asked for consent for the clinician to make referrals to other services such as Occupational Therapy. You may be offered a follow up appointment within six weeks of diagnosis. If you are not offered this, you are within your rights to request one. Some areas offer a post diagnostic autism course after a diagnosis, your clinician would refer you to this.