How long should an ADHD report take to write? UK benchmarks

How long should an ADHD diagnostic report take? There is no NICE or NHS time standard, but UK clinicians have usually spent three to six hours per assessment turning notes into a structured diagnostic report. AI-assisted drafting cuts that to under an hour. The step that now decides the total time is the clinician's check of the draft, and that is the step platforms such as Cerebric are built around.

Through Cerebric we work with many clinicians who write these reports, and a common complaint is finishing them in the evening, after the working day has ended.

1. ADHD report writing time benchmarks: 3 to 6 hours by hand in the UK#

With no official standard, the figures we have come from providers' own experience. Across UK adult ADHD services, writing a report by hand commonly takes three to six hours per assessment. That comes on top of a clinical interview that itself runs two hours or more, so the write-up often takes longer than the assessment. AI-assisted drafting shortens the drafting step, but drafting is only part of the total time.

A separate measure: Cerebric clinics cut report writing time by 75%#

Our own figure is a separate measurement from that range. The Right to Choose and private clinics we measured cut their report writing time by 75% after they started using Cerebric, counted from draft to sign-off and compared with their own time before.*

Where report time goes: drafting versus checkingDraftingChecking by the clinicianDrafting time no longer neededManual write-up from notes: 3 to 6 hoursDrafting 3 to 6 hoursAI scribe: draft under 1 hour, then a check that variesDraftCheck (varies)Drafting time can fall to near zero, but the clinician still reviews and checks every section before signing, and that recorded review is part of what makes the report hold up at audit. The manual and AI-scribe figures come from the UK provider benchmarks in the table beside this chart. The AI-scribe check varies because, without citations, checking depends on memory or re-listening to the recording. With a cited draft, checked by the clinician, UK Right to Choose and private neurodevelopmental providers using Cerebric cut report writing time by 75% (2025–26). That is measured against each clinic's own time before, so it is not drawn on this hour scale.Measured at UK Right to Choose and private neurodevelopmental providers using Cerebric, 2025–26.

One consultant psychiatrist using Cerebric told us: "I had my report, recommendations and all, finished by 5pm. I love how quick and easy it makes filling in all the DIVA boxes. I am over the moon."

Checking is now the slowest step, and cited drafts make it quicker#

With a cited draft, checking is now the slowest step. The clinician signs the report and is responsible for every sentence, so the check has to happen however fast drafting becomes. When a draft cites its sources (each sentence linked to a transcript timestamp, a questionnaire answer, or a document), the clinician can check each sentence against its source. When it does not, checking means re-listening to the recording or relying on memory, which takes much longer and is more likely to be skipped.

*Measured at UK Right to Choose and private neurodevelopmental providers using Cerebric, 2025–26.

2. Report writing time varies with five factors, and you control three#

Report writing time is everything that happens between the end of the clinical interview and a signed diagnostic report that is ready to send: putting the history together, remembering or typing up the consultation, scoring and comparing questionnaires, matching findings to the diagnostic criteria, writing recommendations, and proofreading. Five factors cause most of the difference.

What "report writing time" actually coversInterview endsPull together the historyTranscribe consultationScore questionnairesMatch findings to criteriaclinician's judgementDecide recommendationsclinician's judgementCheck and signclinician's judgementReport writing time runs from the end of the clinical interview to a signed report that is ready to send. Drafting does the gathering stages, pulling the history, the transcript and the scored questionnaires into the sections of the report. Whether the evidence meets the criteria and what to recommend are decided by the clinician, who then checks and signs; checking time is now the better measure.The stages between the end of the interview and a signed report, and which of them the clinician carries out.

Case complexity and audience come with the case, so budget time for them#

How complex the case is. With co-occurring depression or anxiety, a possible autism overlap, or a disputed account of childhood, the differential diagnosis discussion alone can double the writing time.

Audience. The report must serve the patient, their GP (often for shared care), and sometimes an employer or education provider. Writing something clinically sound and readable takes longer than writing for colleagues alone.

Informant evidence, template quality and interruptions are yours to control#

How much informant evidence there is. A thorough adult ADHD assessment draws on the patient interview, an informant interview, school records where available, GP notes, and structured tools such as the DIVA-5 and rating scales. Each source must be summarised and weighed, which takes much longer when you write everything yourself.

Template quality. Starting from a blank page means rebuilding the structure every time. A template mapped to the criteria, with clear prompts for each section, removes that work. When reports are written by hand, the template is often the biggest factor you can control.

Interruptions. A report written in fragments across several days takes far longer than one drafted in one protected block, because each restart means re-reading your notes. Accuracy suffers too, because memory of a consultation fades quickly.

3. AQAS judges an ADHD report by its evidence, not its word count#

The Adult ADHD Assessment Quality Assurance Standard (AQAS) was written by members of the UK Adult ADHD Network (UKAAN) and published in Frontiers in Psychiatry in 2024. It exists because there was no shared standard for what a good adult ADHD assessment, or report, contains.

On length, AQAS is direct: "The length of a report does not necessarily serve as a marker for quality."

AQAS asks for real examples, informant evidence and impairment in two or more settings#

On the report itself, AQAS says all relevant information from the assessment should be recorded "in sufficient detail to demonstrate a robust and valid diagnostic assessment". That means:

• real-life examples of symptoms, not just ticked checklist items;
• evidence that informant information was sought and how it shaped the clinical picture;
• a clear record that the diagnostic criteria were reviewed, and whether they were met;
• a summary of co-occurring conditions;
• a statement that the symptoms are not better explained by another condition.

The report should show the areas of life where there is at least moderate impairment, across at least two settings.

NICE NG87 warns against diagnosis from rating-scale data alone#

This fits with NICE NG87, which requires diagnosis by a suitably qualified specialist after a full clinical and psychosocial assessment, a complete developmental and psychiatric history, and observer reports, and warns that a diagnosis should never be made on rating-scale data alone.

So judge quality by how well claims are linked to evidence, not by word count. Our AQAS checklist for providers covers the full standard.

4. Five changes make ADHD reports faster without lowering quality#

A template mapped to AQAS and NICE comes before any AI tool#

Fix the template first. Before touching any AI tool, build a report template mapped to what AQAS and NICE expect: sections for symptom evidence with real-life examples, informant findings, criteria review, co-occurring conditions, impairment by area of life, and recommendations. With a good template, writing the report means filling in set sections.

Evidence collected and scored before the appointment cuts the chasing#

Collect the evidence before the appointment. Much "report writing time" is spent chasing: waiting for a parent questionnaire, scoring a rating scale, hunting for school records. With online intake, patient and informant questionnaires that score themselves, and automatic reminders, the evidence arrives, scored, before the appointment.

Only cited drafting, not dictation or a scribe, links each sentence to its source#

Know the difference between dictation, scribes, and cited drafting. The three are often confused. Only cited drafting links each sentence to its source, which is what makes checking quick; our comparison of AI scribes and AI report writers explains the difference.

One same-day sitting is faster and more accurate than a week-long write-up#

Write same-day, in one block. Whatever tools you use, one protected sitting is faster and more accurate than a write-up spread over a week. If your clinic's diaries make same-day write-up impossible, fix the diaries first.

A QA checklist at approval catches gaps faster than a general re-read#

Replace informal proofreading with a QA checklist. A set checklist at approval (criteria recorded, areas of impairment stated, informant evidence cited, reasons for medication given) catches gaps faster than a general re-read, and it also serves as audit evidence.

5. Four next steps cut report time and keep reports to the AQAS standard#

1. If your clinicians write ADHD reports by hand and regularly spend more than three to four hours on each, the fix is usually a better template and collecting evidence before the appointment.
2. If you are starting to use AI drafting, treat the clinician's check as protected clinical time.
3. Either way, hold reports to the AQAS standard (linked to evidence, focused on impairment, enough detail), because a report that fails an audit will need redoing.
4. Measure your own typical (median) time from the end of the interview to sign-off, so you know where you are starting from.