ADHD & NICE Guidelines: What You Need to Know

How we ensure our assessments meet the highest standards


When you’re considering an ADHD assessment—you want to know it’s being done properly. At Mirabilis Health, we follow the official guidance set out by NICE (National Institute for Health and Care Excellence), which outlines the gold-standard approach for diagnosis and care in the UK.

Here’s what that means in practice—and how we deliver it with clinical excellence and compassion.

What are NICE guidelines?

NICE provides evidence-based recommendations for healthcare professionals in the UK. The ADHD guideline we follow is NICE NG87, which ensures that assessments are safe, accurate, and widely recognised by GPs, employers, and the NHS. The following shows how Mirabilis adheres to the guidelines in practice:

1.Specialist-led assessments

What it means: Only trained clinicians should diagnose ADHD

All our assessments are led by consultant psychiatrists or clinical psychologists with ADHD expertise.

2.Use of validated tools

What it means: Use structured, evidence-based questionnaires and interviews

We use gold-standard tools like the ACE or DIVA interviews, Conners scales, and ASRS questionnaires.

3.Full developmental history

What it means: Understand symptoms from early life to now.

We take time to explore your history, including early development, family context, and co-occurring challenges.

4.Rule out other explanations

What it means: ADHD can overlap with anxiety, autism, trauma, or learning difficulties — so assess these too.

We carefully consider and screen for other conditions and can provide combined ADHD/Autism assessments.

5.Provide a written report

What it means: Give clear diagnostic feedback in writing.

Every client receives a comprehensive diagnostic report and support recommendations.

6.Plan for what comes next

What it means: Post-diagnosis, help should continue.

We offer follow-up options and can refer you to therapy, psychiatry, or coaching support services.

Why this matters


  • Your diagnosis will be recognised by NHS services, employers, and universities

  • You’ll be fully informed—no rushed or vague assessments

  • You’ll be treated as a whole person, not just a set of symptoms

  • You’ll receive next-step guidance and compassionate care

What makes Mirabilis different?


At Mirabilis, we blend scientific rigour with human warmth. We don’t just tick boxes—we listen deeply. Our goal is not just to diagnose, but to equip you to understand your mind, embrace your strengths, and move forward with confidence.

If you’d like to begin an assessment, or simply ask more questions, we’re here.