How to Document Psychiatric Intake Evaluations and Comprehensive Diagnostic Assessments

A practical guide for psychiatrists, psychiatric nurse practitioners, and clinical psychologists on documenting initial psychiatric evaluations and comprehensive diagnostic assessments that satisfy clinical, billing, and audit requirements.

Why Psychiatric Intake Documentation Is Its Own Category

A psychiatric intake evaluation is not a longer version of a follow-up visit note. It is a different document serving a different purpose, and conflating the two produces notes that fail on multiple fronts simultaneously.

The comprehensive psychiatric evaluation (billed under CPT 90792 or equivalent codes in integrated settings) is the foundational clinical document for a new patient. It must justify your diagnosis, establish the basis for a treatment plan, and create a baseline from which future clinical decisions can be measured. When a payer audits a claim, when a colleague covers your practice, or when a patient's care transitions to a new provider, this note is the primary clinical record that tells the whole story.

The documentation pressure here is different from a medication management follow-up in at least three ways. First, the scope is broader: you are gathering and synthesizing history across multiple life domains, not tracking interval changes to a known symptom picture. Second, the diagnostic stakes are higher: you are reaching conclusions that will shape treatment for months or years, and those conclusions need to be supported by the documented evidence. Third, the billing complexity is greater: 90792 requires documentation of a comprehensive evaluation, and incomplete notes are among the most common sources of audit recoupment in outpatient psychiatry.

This guide walks through every required element, explains what examiners and payers look for, and addresses the documentation errors that turn otherwise strong evaluations into audit failures.

The Required Elements of a Psychiatric Intake

Most professional and payer standards require documentation of the following domains in an initial psychiatric evaluation. The order below reflects typical clinical flow, not a rigid mandate.

1. Identifying Information and Referral Source

Document the patient's age, gender identity, relationship status, living situation, and occupation. These are not demographic formalities. They establish the functional context against which you will measure symptoms and prognosis.

Also document who referred the patient and why. "Self-referred via online search" tells a different clinical story than "referred by primary care physician following abnormal PHQ-9 score of 22" or "referred by employee assistance program following workplace incident."

Example: "Marcus T. is a 34-year-old married man employed as a logistics coordinator, referred by his PCP after reporting persistent depressed mood and passive suicidal ideation at his annual physical. He presents today with his wife, who provided collateral history with patient's consent."

2. Chief Complaint

The chief complaint is the patient's own words about why they are here. Use direct quotation when possible.

"I can't stop thinking about hurting myself" and "I just haven't felt like myself since my father died" are both chief complaints that orient the rest of the note. A paraphrase loses the clinical texture of the patient's experience.

Document the chief complaint separately from your clinical interpretation of it. The HPI is where you develop and contextualize what the patient reports.

3. History of Present Illness

The history of present illness (HPI) is the narrative account of the current episode. A well-written HPI answers eight questions: when did it start, what triggered it, how has it evolved, what are the primary symptoms, what has made it better or worse, what has already been tried, how is it affecting functioning, and why is the patient seeking evaluation now.

For psychiatric presentations, the HPI must also capture the trajectory of the illness. Is this a first episode or a recurrence? If it is a recurrence, how does this episode compare to prior ones? What was the patient's baseline functioning before symptom onset?

Example: "Marcus reports a gradual onset of depressed mood beginning approximately eight months ago, following the sudden death of his father. Initial grief response was expected and he declined counseling. Over the past four months, however, he describes persistent low mood present most days, early morning awakening with inability to return to sleep, significant loss of interest in hobbies (previously avid cyclist, has not ridden in three months), reduced appetite with ten-pound weight loss, difficulty concentrating at work (reports two errors on shipping manifests in the past month that were caught by colleagues), and passive suicidal ideation ('I sometimes think everyone would be better off without me') without plan or intent. He denies prior depressive episodes. No prior mental health treatment."

This level of detail in the HPI is what distinguishes a comprehensive evaluation from a brief symptom checklist. It also establishes the severity and duration criteria that support a DSM diagnosis.

4. Psychiatric History

Document prior mental health diagnoses, with dates if known. Document prior psychiatric hospitalizations (inpatient, partial hospitalization, and intensive outpatient). Document prior psychotherapy: modality, duration, and the patient's reported benefit. Document all prior psychiatric medications: drug name, approximate dates, doses if known, reason for discontinuation, and response.

Organize this section clearly. A numbered list by episode or treatment trial is easier to use clinically than a dense paragraph.

Example:

2018: Three sessions of CBT via employee assistance program for occupational stress. Patient reports minimal benefit; discontinued because "I didn't feel like I had anything to talk about."
2019: PCP prescribed sertraline 50 mg. Discontinued after six weeks due to GI side effects. Patient does not recall effect on mood.
No prior hospitalizations.

5. Medical History

The medical history section covers current medical diagnoses, chronic conditions, relevant surgical history, current non-psychiatric medications, and known allergies. This is not optional or abbreviated in a psychiatric evaluation. Medical conditions directly affect psychiatric presentation, diagnostic formulation, and medication selection.

Document whether medical conditions have been recently evaluated. A patient presenting with new-onset anxiety who has not had thyroid function tested in three years has a clinically relevant gap that belongs in your assessment.

Also document current medications from all prescribers, including over-the-counter medications, herbal supplements, and hormonal contraceptives. Drug interactions and medication-induced psychiatric symptoms require this information.

Example: "Past medical history significant for hypothyroidism (diagnosed 2021, on levothyroxine 75 mcg daily; last TSH drawn 14 months ago, patient does not know the result). HTN, managed with lisinopril 10 mg daily. No known drug allergies. Denies use of supplements other than a daily multivitamin."

Note the clinical implication here: untreated or undertreated hypothyroidism can present with depressive symptoms nearly identical to major depressive disorder. That TSH gap belongs in your differential reasoning.

6. Family Psychiatric History

Document first-degree relatives' psychiatric diagnoses, hospitalizations, and suicide history. Document family response to psychiatric medications when known. This information has direct implications for diagnosis (familial loading for bipolar disorder, for example) and treatment selection (a first-degree relative's response to a specific medication is clinically useful).

Use the patient's language and note its limits. "My mother was always depressed" is not the same as a formal diagnosis of major depressive disorder, and your note should reflect that distinction.

Example: "Maternal grandmother with history of what patient describes as 'nervous breakdowns,' treated with ECT in the 1970s. Mother with self-reported depression, no formal diagnosis or treatment. Paternal uncle with alcohol use disorder. No known family history of bipolar disorder, psychosis, or suicide attempts."

7. Substance Use History

Document use of alcohol, tobacco, cannabis, stimulants, opioids, sedatives, and other substances, including current use, age of first use, peak use, periods of abstinence, and prior treatment. Document whether the patient has experienced withdrawal symptoms, legal consequences, or relationship consequences related to use.

A structured screening tool such as the AUDIT for alcohol or the DAST for drugs provides a baseline severity measure worth documenting.

Do not bury the substance use section. Substance use disorders are primary psychiatric conditions and also the most common comorbidities for mood, anxiety, and psychotic disorders. The ordering and priority of diagnoses depends on accurate substance use documentation.

This section varies more across clinical settings than any other, but it needs to cover key domains: developmental milestones and early history when relevant, educational attainment, occupational history, relationship and family history, legal history, and trauma exposure including adverse childhood experiences (ACEs).

You do not need to write a social biography. You need enough detail to understand the patient as a person whose life context shapes both their symptoms and their treatment options.

Example: "Born and raised in Atlanta, second of three children, describes childhood as 'mostly stable.' Parents divorced when he was 12; lived primarily with mother. No history of abuse or neglect per patient report. Completed college degree in supply chain management. Married seven years, two children ages 4 and 7. Currently employed full-time. No legal history."

9. Mental Status Examination

The mental status examination (MSE) at intake documents your direct clinical observations during the evaluation. This is distinct from the history, which documents what the patient reports.

At an intake, the MSE is typically more thorough than at a follow-up because it establishes the baseline. Every domain should be explicitly addressed:

Appearance: dress, grooming, apparent age relative to stated age, notable physical observations
Behavior and psychomotor activity: cooperative or guarded, eye contact, psychomotor agitation or retardation, gait if observed
Speech: rate, volume, prosody, latency, coherence
Mood: patient's self-reported mood in direct quotation
Affect: your observation of emotional expression (range, intensity, appropriateness to content, congruence with reported mood)
Thought process: linear and goal-directed, circumstantial, tangential, loosely associated, flight of ideas
Thought content: suicidal ideation, homicidal ideation, paranoid ideation, obsessions, phobias, ideas of reference, delusions
Perceptual disturbances: hallucinations (auditory, visual, tactile, olfactory), illusions, derealization, depersonalization
Cognition: orientation, attention and concentration, memory (registration and recall), language, fund of knowledge, abstraction if tested formally
Insight: patient's understanding of their symptoms and their nature as potential psychiatric problems
Judgment: patient's ability to make reasoned decisions about their care and daily life

A note that reads "MSE unremarkable" is not a mental status examination. Every element should be characterized, even if the characterization is "within normal limits."

10. Risk Assessment

The risk assessment at intake is both more comprehensive and more consequential than the safety screen at a follow-up. You are establishing a baseline risk profile, not checking interval status.

Document the following domains:

Suicidal ideation (SI): presence, frequency, intensity, duration. If present: passive ("life is not worth living") versus active ("planning to act"). Plan, intent, means, timeline.
Self-harm: current or historical non-suicidal self-injurious behavior, methods, function
Homicidal ideation (HI): presence, any specific target, means, intent
Psychiatric hospitalization history: voluntary versus involuntary, precipitants, outcomes
Lethal means: firearm access, medication stockpiling, other means relevant to risk
Protective factors: reasons for living, social support, future orientation, engagement with treatment
Risk modifiers: recent major losses, intoxication history, impulsivity, prior attempts

Document your clinical risk formulation and the risk level you are assigning (low, moderate, high) with explicit justification. A risk assessment that merely lists "denies SI, denies HI" is not a formulation. Connect your risk level to the documented factors.

Example (moderate risk): "Patient endorses current passive SI without plan or intent. No prior attempts. Modifying factors increasing risk: recent major loss (father's death), ongoing sleep disturbance, social isolation, access to unsecured firearms at home (patient's own, kept in bedroom). Modifying factors decreasing risk: engaged in evaluation, future orientation present (reports motivation related to young children), no prior attempts, no substance use. Risk assessed as moderate based on passive ideation with no plan, offset by protective factors, with primary concern regarding firearm access. Discussed means restriction counseling with patient and wife present; patient agreed to temporary transfer of firearm to brother-in-law. Safety plan developed."

11. Diagnostic Formulation

The diagnostic formulation is where the comprehensive psychiatric evaluation earns its name. This is the section that distinguishes a thoughtful clinician's work from a symptom checklist.

The diagnostic formulation includes two parts: your DSM-5-TR diagnoses with supporting rationale, and your clinical formulation that explains why this patient developed these problems at this time.

For each diagnosis, document the specific criteria met. You do not need to list every criterion verbatim, but you need enough detail that a reviewer can see why the diagnosis applies. For the primary diagnosis, consider organizing this as: "Patient meets DSM-5-TR criteria for Major Depressive Disorder, Recurrent, Moderate (296.32) based on [symptom criteria documented in HPI]: persistent depressed mood, anhedonia, sleep disturbance, appetite change with weight loss, impaired concentration, and passive suicidal ideation, all present for at least two weeks and representing a change from baseline, causing significant functional impairment."

12. Differential Diagnosis

Documenting your differential diagnosis demonstrates clinical reasoning and protects against diagnostic errors that might only become apparent over time.

The most common error in psychiatric intake documentation is stating a single diagnosis with no differential. Even when you are confident in your primary diagnosis, documenting and ruling out alternatives shows the clinical reasoning that supported your conclusion.

For a patient presenting with depressive symptoms, a minimum differential includes:

Major Depressive Disorder
Bipolar Disorder (type I or II): Were there any hypomanic or manic episodes? Rule this out explicitly, because it changes treatment.
Persistent Depressive Disorder (dysthymia): Duration and severity matter.
Adjustment Disorder with Depressed Mood: Is there an identifiable stressor with a temporal relationship? Is the severity proportional?
Substance-induced depressive disorder: Review substance use history.
Depressive disorder due to another medical condition: Has the relevant medical workup been completed?
Prolonged Grief Disorder: A newer DSM-5-TR category relevant to patients with significant loss histories.

Document the basis for your ruling out of each alternative: "Bipolar disorder considered; patient denies any history of elevated mood, decreased need for sleep, increased goal-directed activity, or grandiosity. No family history of bipolar disorder. Will monitor longitudinally."

13. Treatment Plan

The treatment plan documents your clinical decisions following the evaluation. At minimum, include:

Medication plan: specific drug, dose, frequency, rationale, informed consent discussion, monitoring plan, and follow-up timeline
Psychotherapy referral or recommendation: specific modality recommended and rationale when possible
Diagnostic workup: any labs, imaging, or outside records needed to complete the evaluation
Safety plan: documented for any patient with current risk factors
Coordination of care: other providers involved and plan for communication
Return for follow-up: specific timeframe

Do not write a treatment plan as a list of orders without rationale. Connect each plan element to the assessment: "Given diagnosis of MDD with moderate severity, initiating sertraline 50 mg daily. SSRI selected based on favorable side effect profile, patient's prior partial exposure to sertraline (discontinued early due to GI side effects; will start at lower dose and titrate slowly), and lack of contraindications. Target: PHQ-9 reduction of at least 5 points at 4-week follow-up. Labs ordered: TSH, CBC, CMP prior to medication initiation given history of hypothyroidism and weight loss."

Common Documentation Errors That Lead to Audit Failures

Missing or incomplete psychiatric history. The most common audit failure in 90792 claims is a history section that does not cover prior treatment, prior hospitalizations, or medication history. Each of these is a discrete required element.

HPI that reads as a checklist rather than a narrative. Criterion-by-criterion symptom listing without clinical context does not constitute an HPI. The chronology, trajectory, and functional impact of the illness belong in this section.

No documented differential diagnosis. A single diagnosis with no reasoning about alternatives does not meet the standard for a comprehensive evaluation.

Risk assessment that states conclusions without evidence. "Low risk" is not a risk assessment. The documented factors that support your risk level are the actual clinical record.

Treatment plan without rationale. Every clinical decision in the treatment plan should trace back to something in the assessment. If you cannot link the plan element to documented clinical reasoning, the note fails the coherence test that reviewers use.

MSE that is copied from a template without personalization. An auto-filled MSE that does not reflect the actual patient in front of you is not only clinically useless, it is a documentation falsification risk. Every MSE element should reflect your direct observation.

Diagnoses without documented criteria. Listing "Major Depressive Disorder" without any documentation of the criteria met is insufficient for a comprehensive evaluation. The criteria are part of the clinical record.

Missing informed consent for medications initiated at intake. If you start a medication at the end of the evaluation, document that you discussed it, explained the rationale, reviewed side effects, and that the patient agreed. This is both a clinical and medicolegal requirement.

Billing and Coding Considerations for 90792

CPT 90792 is the code for a psychiatric diagnostic evaluation with medical services (meaning the clinician is authorized to prescribe). It is distinct from 90791, which covers a psychiatric diagnostic evaluation without medical services.

To support 90792, the documentation must reflect a comprehensive evaluation that includes medical history, medication review, and medical decision-making. Notes that read more like a therapy intake without a medical component may be downcoded on audit.

The key documentation elements reviewers look for:

All history domains addressed (chief complaint, HPI, psychiatric history, medical history, family history, substance use, social history)
MSE documented with sufficient specificity
Risk assessment with clinical formulation
Diagnostic impression with supporting rationale
Treatment plan with medical component (medications discussed, ordered, or evaluated)

If you are billing 90792 in combination with E&M codes in an integrated care setting, review the current CMS guidance for concurrent billing requirements, as these change periodically and are a frequent audit target.

Psychiatric Intake Documentation Checklist

History

Identifying information: age, gender, living situation, occupation, referral source
Chief complaint in patient's own words
HPI: onset, triggers, trajectory, symptoms, functional impact, prior treatment attempts
Psychiatric history: prior diagnoses, hospitalizations, therapy, and medications (with response and reason for discontinuation)
Medical history: active diagnoses, surgical history, current medications from all providers, allergies
Family psychiatric history: diagnoses, hospitalizations, suicide, and medication response in first-degree relatives
Substance use: current and historical use, dependence, withdrawal, prior treatment
Developmental, social, and trauma history: key life context documented

Mental Status Examination

Risk Assessment

Suicidal ideation: presence, nature, plan, intent, means
Self-harm history and current status
Homicidal ideation
Lethal means assessed and documented
Protective factors documented
Clinical risk level stated with supporting rationale
Safety plan documented if indicated

Diagnostic Formulation

DSM-5-TR diagnoses with criteria documented
Differential diagnoses documented with explicit ruling out
Clinical formulation connecting history to diagnosis

Treatment Plan

Medications: drug, dose, rationale, consent discussion, monitoring plan
Psychotherapy recommendation with modality rationale
Diagnostic workup ordered with rationale
Coordination of care documented
Follow-up timeline specified

Billing and Compliance

All required history domains addressed (90792 or equivalent)
Medical component documented (medication decision-making)
Total time documented if billing by time
Note signed and dated

If you conduct psychiatric intakes across a full evaluation schedule, the documentation burden is real. NotuDocs lets you build an intake evaluation template that mirrors your clinical workflow, so the AI fills structured fields from your session notes rather than generating content from scratch. No fabricated history, no invented MSE findings -- just your clinical reasoning organized into a defensible, billable document.

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