Documenting an adult ADHD evaluation: the workup, the DSM-5-TR criteria, and the note that supports the diagnosis

By Selam Koch, PMHNP-BC, founder of OneStep Scribe and practicing psychiatric nurse practitioner. Published July 2026.

An adult ADHD evaluation is one of the highest-scrutiny notes a behavioral health provider writes. The diagnosis frequently leads to a controlled substance, so the chart is more likely than most to be read later by someone who was not in the room: a payer reviewing a prior authorization, a pharmacy board, a state prescription monitoring program, or a colleague inheriting the patient. A note that records a plausible diagnosis but does not show the reasoning behind it is the note that gets a stimulant prescription flagged.

The good news is that a defensible ADHD evaluation is not a longer note. It is a note that maps cleanly onto the diagnostic criteria and shows your differential. This guide walks the DSM-5-TR criteria for adult ADHD, the two elements clinicians miss most often, how to use rating scales without overstating them, the differential you have to document as considered and excluded, and a complete fictional example you can pattern against.

Why the adult ADHD note gets read closely

Three forces converge on this diagnosis. First, most first-line treatments are Schedule II stimulants, which means the prescription itself invites oversight that a note for insomnia or adjustment disorder never draws. Second, adult ADHD is diagnosed clinically. There is no lab value and no imaging finding, so the note is the entire evidentiary record. Third, the criteria require a retrospective, cross-setting history that a single visit does not automatically produce. When a reviewer questions an ADHD diagnosis, they are almost never questioning your clinical judgment in the abstract. They are asking whether the chart shows the criteria were actually met. If the note does not say it, the note did not do it.

The DSM-5-TR criteria, mapped to your note

DSM-5-TR keeps the same core structure introduced in DSM-5. For an adult, the diagnosis requires five criteria to be satisfied and documented. Think of each one as a section your note has to earn.

The adult threshold is five symptoms, not the six required for children up to age 16. The two symptom domains are worth having in front of you when you write, because the strongest notes name the actual symptoms the patient endorsed rather than asserting a total.

Inattentive symptoms (endorse 5 or more)

• Misses details or makes careless mistakes in work or other activities.
• Difficulty sustaining attention in tasks (long reading, long meetings, paperwork).
• Seems not to listen when spoken to directly.
• Does not follow through and fails to finish tasks, loses focus mid-task.
• Difficulty organizing tasks, time, and materials; misses deadlines.
• Avoids or dislikes tasks requiring sustained mental effort.
• Loses things needed for tasks (keys, phone, paperwork, wallet).
• Easily distracted by external stimuli or unrelated thoughts.
• Forgetful in daily activities (bills, appointments, returning calls).

Hyperactive-impulsive symptoms (endorse 5 or more)

• Fidgets, taps, or squirms.
• Leaves seat when remaining seated is expected.
• Feels restless (in adults this often replaces overt running or climbing).
• Unable to engage in leisure activities quietly.
• Feels driven, "on the go," as if propelled by a motor.
• Talks excessively.
• Blurts out answers before questions are finished.
• Difficulty waiting turn.
• Interrupts or intrudes on others.

Once you know the count and domains, DSM-5-TR asks you to specify a presentation (predominantly inattentive, predominantly hyperactive-impulsive, or combined) and a severity (mild, moderate, severe). Adults frequently present with the inattentive picture, and the hyperactivity often reads as internal restlessness rather than the visible motor activity seen in children. Documenting the presentation and severity is a small addition that signals you applied the full criteria set rather than a general impression.

The two elements clinicians miss most: childhood onset and cross-setting

If an adult ADHD note fails review, it usually fails on Criterion B or Criterion C. Symptom count and impairment tend to be well documented because they are what the patient came in to describe. Childhood onset and cross-setting evidence require you to deliberately turn the interview backward in time and outward across contexts, and to write down what you find.

Documenting childhood onset (Criterion B)

The requirement is several symptoms present before age 12, not a childhood diagnosis. Many adults were never evaluated as children, so you are reconstructing a history. Useful, documentable anchors include:

• School experience: report card comments ("does not apply herself," "talks too much," "careless errors"), trouble finishing tests, homework that took far longer than peers, being moved seats.
• Whether they were ever in trouble for behavior, daydreaming, or incomplete work.
• Old records when obtainable: report cards, an individualized education plan, prior testing.
• Collateral from someone who knew them as a child, such as a parent or older sibling.

Write the anchor, not just the conclusion. "Onset before age 12 per DSM criteria" is a restatement of the rule. "Reports report-card comments about careless errors and unfinished work in grades 3 through 5, required extra time on tests throughout elementary school" is evidence a reviewer can weigh.

Documenting cross-setting impairment (Criterion C)

Symptoms in only one setting do not meet criteria, and a single setting is also a differential clue, because a problem confined to work may point to a job mismatch or a mood or anxiety process rather than ADHD. Name at least two contexts with a concrete example in each. Work and home is the most common pair for adults: missed deadlines and a chaotic inbox at work, plus unpaid bills, a partner who manages the household logistics, and lost keys at home. If a partner or family member offers collateral about the home setting, that observation is worth a sentence of its own.

Rating scales support the diagnosis, they do not make it

Scales are useful and they belong in the chart, but their role is supporting evidence, not the diagnosis itself. The distinction matters because treating a positive screener as a diagnosis is one of the fastest ways to weaken an ADHD note.

The Adult ADHD Self-Report Scale (ASRS v1.1), developed in connection with the World Health Organization, is a screening instrument. Its Part A six-item screen flags patients whose symptoms warrant a full evaluation. A positive ASRS means "evaluate," not "diagnose." It is self-report, it is not specific to ADHD, and it can be elevated by anxiety, depression, poor sleep, or by a patient who has read the criteria. Document the score as one data point inside your evaluation, alongside the criteria-based history.

Other instruments can strengthen the record when used the same way: broader adult symptom scales for current severity, and retrospective childhood scales that ask about symptoms before age 12 and help support Criterion B. Collateral report, from a partner about the home setting or a parent about childhood, often carries more weight than any single self-report score, because it triangulates the history across observers.

The differential you must document as considered and excluded

Criterion E is not a formality. Inattention, restlessness, and poor concentration are among the least specific findings in all of behavioral health, and several common conditions produce them. A defensible ADHD note names the alternatives it considered and says, briefly, why ADHD fits better. The recurring theme in your reasoning is chronicity and pervasiveness: ADHD is present from childhood and across settings, whereas most of the differential is episodic, later in onset, or tied to a specific context.

You do not need a paragraph on each. One or two sentences that name the conditions you weighed and the reason ADHD fits best is enough to show the reasoning happened. Also keep medical contributors in view, including thyroid dysfunction and other conditions that can present with fatigue and inattention, and screen for them when the picture warrants. Co-occurrence is common as well, and documenting a comorbid anxiety or mood disorder alongside ADHD is more honest and more defensible than forcing a single label.

A complete documented evaluation example

The following patient is fictional and is presented only to illustrate documentation. It shows each criterion carrying its own weight, the scale in a supporting role, and the differential stated explicitly.

The documentation failures reviewers catch

• No childhood onset documented. The single most common gap. Current symptoms and impairment are recorded, but nothing establishes symptoms before age 12, so Criterion B is unmet on the face of the chart. Elicit and write the developmental history at the evaluation.
• The screener treated as the diagnosis. "ASRS positive, started stimulant" documents a screen and a prescription with no criteria-based evaluation between them. A screener flags who to evaluate; it does not diagnose.
• No differential. A note that never mentions anxiety, mood, sleep, substances, or trauma reads as a diagnosis reached without ruling anything out, which is exactly what Criterion E asks you to do.
• Functional impairment asserted, not shown. "Causes significant impairment" restates the criterion. Name the missed deadline, the performance note, the relationship conflict, the unpaid bills.
• One setting only. Symptoms documented at work but nowhere else do not meet Criterion C, and a single-context problem is itself a differential clue worth addressing.

The evaluation itself is a diagnostic encounter, and how that visit is coded is its own topic; the 90791 vs 90792 guide covers the distinction between the two diagnostic evaluation codes. When you use standardized instruments as part of the workup, the PHQ-9 and GAD-7 documentation guide shows how to record a score so it functions as evidence rather than a loose number, and the same principle applies to any ADHD scale. The observational findings you record during the interview belong in the exam; the mental status exam guide covers how to document psychomotor restlessness, distractibility, and attention as things you actually observed.

Frequently asked questions

Do I need a rating scale to diagnose adult ADHD?

No. The diagnosis rests on the DSM-5-TR criteria applied through a clinical interview and history. Scales like the ASRS are helpful screening and severity tools, and they strengthen the record, but a positive scale is not required for the diagnosis and is not sufficient for it on its own.

What if the patient has both ADHD and another condition?

Comorbidity is common. Criterion E asks whether the symptoms are better explained by another disorder, not whether another disorder is also present. If the ADHD pattern is chronic and cross-setting and stands on its own beyond the course of the comorbid condition, you can document both. Naming the comorbidity is usually more defensible than forcing a single diagnosis.

How do I document childhood onset when there are no old records?

Records are ideal but not required. Reconstruct the history through specific recalled anchors (school performance, report-card themes, homework struggles, behavior) and, when available, collateral from someone who knew the patient as a child. Document the specific anchors rather than a bare statement that onset was before age 12.

Does an AI scribe help with an ADHD evaluation?

It helps most with the part clinicians run out of time to write: capturing the full evaluation as it actually happened. The friction in an ADHD note is rarely the current symptom list. It is the childhood history, the second setting, and the differential, all of which get discussed in the room and then compressed to a line under documentation pressure. OneStep Scribe listens to the visit and drafts the evaluation with each criterion as its own element, so the developmental history you elicited, the cross-setting examples, the scale in a supporting role, and the differential you talked through all land in the note instead of your memory. You still confirm every criterion and make the diagnosis; the scribe makes sure the reasoning you already did is on the page.

This article is educational and reflects one clinician's documentation approach. It is not clinical, legal, or billing advice for any specific patient, and it does not guarantee any outcome or reimbursement. Diagnostic decisions rest with the treating clinician using current criteria and clinical judgment. The patient described is fictional. CPT is a registered trademark of the American Medical Association. Always verify requirements with current clinical guidelines, the DSM-5-TR, your payers, and your compliance advisors.