Diagnosis, the DSM-5-TR and the mental status examination
Last reviewed September 2026 by Dr. Andrew Wichterman · Aligned to the current NCE blueprint. Valid for exams through June 30, 2027.
AI-narrated overview made with Google NotebookLM. The written lesson below is by Dr. Andrew Wichterman.
Diagnosis sits in the assessment domain and runs through every Areas of Clinical Focus item. The exam tests the structure of the DSM, the mental status examination, and a handful of diagnostic distinctions.
Try to answer each from memory first, even if you have to guess. Guessing before reading makes the answer stick; reveal only after you have tried.
The DSM and the ICD
The Diagnostic and Statistical Manual of Mental Disorders, published by the American Psychiatric Association, classifies mental disorders by criteria. The DSM-5 in 2013 abandoned the multiaxial system of DSM-IV; the DSM-5-TR text revision in 2022 updated text, added prolonged grief disorder, and added codes for suicidal behavior and nonsuicidal self-injury. The International Classification of Diseases from the World Health Organization, now ICD-11, covers all diseases; ICD codes are required for billing in the United States. The DSM organizes disorders developmentally, from neurodevelopmental through neurocognitive, and uses specifiers and severity ratings in place of axes. Counselors diagnose within their scope of practice and state law and may decline to diagnose when it would harm the client.
The mental status examination
The MSE is a structured observation and brief inquiry organized by domain. Appearance: grooming, dress, apparent age. Behavior and psychomotor activity: agitation, retardation, eye contact. Speech: rate, volume, pressured or latent. Mood, the client's reported feeling, and affect, the observed expression, described as full, restricted, blunted, flat, labile, congruent or incongruent. Thought process: linear, circumstantial, tangential, loose associations, flight of ideas, thought blocking. Thought content: delusions, obsessions, suicidal or homicidal ideation. Perception: hallucinations, illusions, derealization. Cognition: orientation to person, place, time and situation; attention, memory, abstraction. Insight and judgment. The exam asks you to place a symptom in its domain and to distinguish mood from affect.
Distinctions the exam tests
Hallucination, a perception without a stimulus, versus delusion, a fixed false belief, versus illusion, a misperception of a real stimulus. Positive symptoms of psychosis, added experiences such as hallucinations and delusions, versus negative symptoms, diminished functions such as flat affect, alogia and avolition. Bipolar I requires a manic episode; bipolar II requires hypomania plus major depression. Adjustment disorder follows an identifiable stressor within three months. Acute stress disorder is the first month after trauma; PTSD is after a month. Differential diagnosis rules out medical and substance causes first. Culture-bound presentations and the Cultural Formulation Interview belong in any assessment.
Diagnostic process and case conceptualization
Diagnosis follows intake, history and the MSE and is supported by instruments as needed. A biopsychosocial assessment covers biological factors, psychological factors and social context. Case conceptualization connects the diagnosis to a theoretical understanding of how the problem developed and is maintained, and leads to a treatment plan with measurable goals, objectives and interventions. Treatment plans are collaborative, reviewed regularly and documented. Reliability of diagnosis improves with structured interviews; validity depends on the construct.
Psychopharmacology basics for counselors
Counselors do not prescribe but must recognize classes. Antidepressants: SSRIs such as fluoxetine and sertraline, SNRIs, tricyclics and MAOIs; watch for activation and, in youth, suicidality warnings. Mood stabilizers: lithium, which requires blood level monitoring, and anticonvulsants such as valproate and lamotrigine. Antipsychotics: first-generation such as haloperidol with extrapyramidal side effects and tardive dyskinesia; second-generation such as risperidone and olanzapine with metabolic effects. Anxiolytics: benzodiazepines, which carry dependence risk, and buspirone, which does not. Stimulants for ADHD such as methylphenidate and amphetamines. A counselor's role is to observe effects and side effects, encourage adherence, and coordinate with the prescriber.
Without scrolling up, write everything you remember from this lesson. Then check yourself against the key terms. Recalling the whole lesson once, right after reading it, does more than reading it twice.
Ten more questions from the whole domain, with an explanation after each answer.
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