Neurodevelopmental Assessments - Autism Spectrum Disorders

Our autism assessments follow a structured, multi-disciplinary approach, ensuring thorough evaluation for individuals across age ranges. We use gold-standard tools such as the ADOS-2 and ADI-R to assess communication, social interaction, and restrictive behaviours. Following the autism assessment, we’ll provide you with a comprehensive outcome report, based on NHS and National Institute for Health and Care Excellence (NICE) standards. The entire end-to-end process for our private autism assessment usually takes between 4 to 6 weeks.

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There are several different stages as part of your ASD assessment process:
1. Pre-assessment Questionnaires: We will send you different questionnaires to complete. Information gathered from questionnaires is reviewed and analysed by our clinical team before the assessment.

2. Developmental Clinical History & Presenting Issues Assessment:  Our clinicians will then complete a face to face or video call with you to gather information on the development, behaviour, skills and clinical history. The call systematically covers the person's developmental, medical and educational history and captures early and current observations. 

3. Autism Specific Assessments:  We use the "Gold standard" assessment tools the ADOS-2, and ADI-R. which are diagnostic tools used by our neurodevelopmental specialists. ADOS-2 is a present state observation assessment. You will do some tasks together and answer some questions but there are no right or wrong answers and it is not a test. The ADI-R stands for Autism Diagnostic Interview- Revised (ADI-R) and is a structured interview carried out by our neurodevelopmental specialists who are trained in administering this tool. The interview usually takes place with a parent or someone else who knows the person well. 

4. Feedback and Report: After the assessment sessions, the clinician will agree on an appropriate outcome based on all the information and evidence from all components of the assessment as well as the diagnostic criteria from the Diagnostic and Statistical Manual Of Mental Disorders - 5th Ed. (DSM-5). 

 

The clinician will arrange an appointment with you (face to face or online) to give the outcome, provide a summary of the overall assessment and provide suggestions for appropriate strategies or interventions that may be beneficial. This appointment is typically 45-60 minutes.

 

Different assessment options include:

 

Second Opinion £450: For individuals with previous assessment reports and potential previous diagnoses (90 minutes) - View Availability & Book

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Fully Comprehensive Autism Assessment £1650: Diagnostic Clinical Interview, Behavioural Observations, ADOS-2 & ADI-R, Differential Diagnosis (for Mental Health Diagnoses), Detailed diagnostic report, and Feedback session - View Availability & Book

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Fully Comprehensive Autism & Cognitive Assessment £1895: Diagnostic Clinical Interview, Behavioural Observations, Cognitive and Adaptive assessments, that may include IQ neuropsychological testing (CREYOS Neuropsychological batteries or WISC/WAIS), ADOS-2 & ADI-R, Detailed diagnostic report, and Feedback session - View Availability & Book

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Fully Comprehensive Autism & ADD/ADHD Assessment (inc Cognitive Assessment) £2250: Diagnostic Clinical Interview, Behavioural Observations, Cognitive and Adaptive assessments (including IQ neuropsychological testing, WISC/WAIS, ADD/ADHD Assessment (including (CREYOS Neuropsychological batteries and/or QbCheck), ADOS-2 & ADI-R, Detailed diagnostic report, and Feedback session - View Availability & Book​

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Book an Initial Consultation

​Getting started is simple. Our online Initial Screening Consultation brings expert insight straight to your screen, wherever you feel most comfortable. This 30-minute video session with a neurodivergence-specialist is designed to determine whether a full diagnostic assessment would be helpful.

 

​While this is not a diagnostic assessment, it provides valuable guidance on next steps. Following this session, you will receive a summary of our recommendations, with either not continuing with an assessment, sparing you unnecessary time and costs or suggesting types of a comprehensive assessment to explore a possible diagnosis.​

 

The consultation fee is £30, which will be deducted from your total assessment cost should you decide to proceed with a full diagnostic assessment.​ At Code Behaviour, we ensure the process is clear, supportive, and evidence-based, so you can move forward with confidence and clarity.