Evidence record

NICE. Attention deficit hyperactivity disorder: diagnosis and management (NG87). Last reviewed 7 May 2025.

A governed Evidence source projected for the exact ND Oracle claims it bears on.

A source is not a conclusion. Read the exact claim, role, context, limitations and uncertainty together. This record is not a recommendation, diagnosis, legal decision or quality score.

Source record

Source kind: authoritative guidance
Evidence model: Accepted legacy v0.1 embedded source
Accessed: 2026-08-12
Oracle last reviewed: 2026-08-12

Open source

Claims this source bears on

ADHD is a neurodevelopmental condition in which persistent inattention and/or hyperactivity-impulsivity begins in childhood, occurs across important settings and is associated with meaningful impairment; symptoms and impact can continue into adulthood and change over time.

Claim reference: adhd#adhd-claim-core · Confidence: high · Evidence role: Legacy source route — no v0.2 contribution role inferred

Evidence limitations

None recorded.

Claim uncertainty

Which supports remain useful as ADHD presentation, responsibilities and environments change through adulthood and ageing?
How do gender, culture, race, class, masking and access pathways affect recognition, delayed diagnosis and misdiagnosis?

ADHD diagnosis is based on specialist clinical assessment, developmental and psychiatric history, functioning across settings and consideration of alternatives and co-occurring conditions; no single rating scale, observation or cognitive test is sufficient by itself.

Claim reference: adhd#adhd-claim-assessment · Confidence: high · Evidence role: Legacy source route — no v0.2 contribution role inferred

Evidence limitations

None recorded.

Claim uncertainty

How do gender, culture, race, class, masking and access pathways affect recognition, delayed diagnosis and misdiagnosis?
Which cognitive and behavioural measures add useful information to ADHD assessment without being mistaken for diagnostic biomarkers?

ADHD-related impairment depends partly on environmental demands, and individualised environmental modifications can be part of support rather than treating the person as the only thing that must change.

Claim reference: adhd#adhd-claim-environment · Confidence: high · Evidence role: Legacy source route — no v0.2 contribution role inferred

Evidence limitations

None recorded.

Claim uncertainty

Which environmental modifications and non-pharmacological supports improve outcomes people with ADHD value, for whom and in which settings?

Funding and conflicts

None recorded.

Evidence projection provenance

Batch B original-five evidence review authorised by the owner on 2026-08-12 and promoted from preserved candidate blob c55adf286bb91341866c9a95857637065fc469a9; candidate history remains preserved.

Public projection ID: legacy-adhd-adhd-source-nice