Decision Tree

Decision Trees for Differential Diagnosis. By clicking below I agree to not use this as an official diagnostic tool. I Agree

Pick a differential diagnosis Differential Diagnosis of Mental Disorders Due to a General Medical Condition Differential Diagnosis of Substance-Induced Disorders Differential Diagnosis of Psychotic Disorders Differential Diagnosis of Mood Disorders Differential Diagnosis of Anxiety Disorders Differential Diagnosis of Somatoform Disorders

Is there a disturbance of consciousness and a change in cognition Symptoms that are due to the direct physiological effects of a general medical condition Yes No

Evidence that the disturbance has more than one etiology (e.g., substance and general medical condition) Yes No

Delirium Due to a General Medical Condition Start Over

Delirium Due to Multiple Etiologies Start Over

At least one additional cognitive deficit Yes No

Evidence that the disturbance has more than one etiology (e.g., cerebrovascular disease and Alzheimer’s disease) Yes No

Dementia Due to Multiple Etiologies Start Over

Evidence that cerebrovascular disease is etiologically related to the disturbance Yes No

Disturbance due to central nervous system condition or systemic condition known to cause dementia Yes No

Dementia Due to a General Medical Condition Start Over

Gradual onset and continuing cognitive decline Yes No

Dementia of the Alzheimer’s Type Start Over

Dementia Not Otherwise Specified Start Over

Amnestic Disorder due to a General Medical Condition Start Over

Prominent delusions or hallucinations predominate Yes No

Psychotic Disorder Due to a General Medical Condition Start Over

Prominent and persistent mood disturbance predominates Yes No

Mood Disorder Due to a General Medical Condition Start Over

Prominent anxiety, panic attacks, obsessions, or compulsions predominate Yes No

Anxiety Disorder due to a General Medical Condition Start Over

Clinically significant sexual dysfunction exclusively due to a general medical condition Yes No

Sexual Dysfunction Due to a General Medical Condition Start Over

Disturbance in sleep sufficiently severe to warrant independent clinical attention Yes No

Sleep Disorder Due to a General Medical Condition Start Over

Catatonic Disorder Due to a General Medical Condition Start Over

Change in previous personal pattern Yes No

Personality Change Due to a General Medical Condition Start Over

Clinically significant symptoms etiologically related to a general medical condition that do not meet criteria for a specific Mental Disorder Due to a General Medical Condition Yes No

Mental Disorder Not Otherwise Specified Due to a General Medical Condition Start Over

No Mental Disorder (Symptoms that are not clinically significant) Start Over

Symptoms must be due to the direct physiological effects of a substance A disturbance of consciousness and a change in cognition that are in excess of that usually seen in intoxication or withdrawal and that warrant independent clinical attention Yes No

Persistent memory impairment Yes No

Onset of delirium during withdrawal from a substance Yes No

Substance-Induced Withdrawal Delirium Start Over

Substance Induced Intoxication Delirium Start Over

Substance-Induced Persisting Dementia Start Over

Substance-Induced Persisting Amnestic Disorder Start Over

Delusions or hallucinations predominate, are in excess of that usually seen in intoxication or withdrawal, and warrant independent clinical attention Yes No

Substance-Induced Psychotic Disorder – Specify if onset during intoxication or withdrawal Start Over

A mood disturbance predominates, is in excess of that usually seen in intoxication or withdrawal, and warrants independent clinical attention. Yes No

Substance-Induced Mood Disorder – Specify if onset during intoxication or withdrawal Start Over

Anxiety, panic attacks, or obsessions or compulsions predominate; are in excess of that usually seen in intoxication or withdrawal; and warrant independent clinical attention Yes No

Substance-Induced Anxiety Disorder – Specify if onset during intoxication or withdrawal Start Over

Clinically significant sexual dysfunction exclusively due to a substance, is in excess of that usually seen in intoxication, and warrants independent clinical attention Yes No

Substance-Induced Sexual Dysfunction Start Over

Disturbance is sleep that is sufficiently severe to warrant independent clinical attention and is in excess of that usually seen in intoxication or withdrawal Yes No

Substance-Induced Sleep Disorder – Specify if onset during intoxication or withdrawal Start Over

Development of a reversible syndrome due to recent use of a substance Yes No

Substance Intoxication Start Over

Development of a syndrome due to reduction or cessation of use of substance Yes No

Substance Withdrawal Start Over

Clinically significant symptoms due to a substance that do not meet criteria for one of the Substance-Induced Disorders Yes No

Substance-Related Disorder Not Otherwise Specified Start Over

No Substance-Induced Disorder (substance-induced symptoms that are not clinically significant) Start Over

Delusions, hallucinations, disorganized speech, or grossly disorganized behavior Due to the direct physiological effects of a general medical condition Yes No

Due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication, or a toxin) Yes No

Substance-Induced Psychotic Disorder Start Over

Symptoms of active phase of Schizophrenia, lasting at least 1 month Yes No

Major Depressive or Manic Episode concurrent with active-phase symptoms Yes No

Total duration of mood episodes has been brief relative to duration of active and residual periods Yes No

Duration at least 6 months Yes No

Schizophreniform Disorder Start Over

At least 2 weeks of delusions or hallucinations in the absence of prominent mood symptoms Yes No

Schizoaffective Disorder Start Over

Mood Disorder with Psychotic Features (see Mood Disorders tree ) Start Over

Nonbizarre delusions lasting at least 1 month Yes No

Total duration of mood episodes has been brief relative to duration of delusional periods Yes No

Apart from delusions, functioning not markedly impaired Yes No

Delusions occur only during mood episodes Yes No

Delusional Disorder Start Over

Psychotic Disorder Not Otherwise Specified Start Over

Duration more than 1 day but less than 1 month Yes No

Brief Psychotic Disorder Start Over

Depressed, elevated, expansive, or irritable mood Due to the direct physiological effects of a general medical condition Yes No

No Mood Disorder (mood symptoms that are not clinically significant) Start Over

Due to the direct physiological effects of a substance (i.e., a drug of abuse, a medication, or a toxin) Yes No

Substance-Induced Mood Disorder Start Over

Determine type of present and past mood episodes Next

Elevated, expansive, or irritable mood, at least 1-week duration; marked impairment or hospitalization Yes No

Manic Episode Start Over Mixed Diagnosis

Elevate, expansive, or irritable mood, at least 4-day duration; changes observable by others but less severe than a Manic Episode Yes No

Hypomanic Episode Start Over Mixed Diagnosis

Major Depressive Episode Start Over Mixed Diagnosis

At least 2 weeks of depressed mood or loss of interest plus associated symptoms, and not better accounted for by Bereavement Yes No

Criteria met for Manic Episode and Major Depressive Episode nearly every day for at least 1 week Yes No

Mixed Episode Start Over Mixed Diagnosis

Has ever had a Manic Episode or a Mixed Episode Yes No

Psychotic symptoms occur at times other than during Manic or Mixed Episodes Yes No

Occurred exclusively during Schizoaffective Disorder (review Psychotic Disorders tree ) Yes No

Schizoaffective Disorder, Bipolar Type Start Over

Bipolar Disorder Not Otherwise Specified (superimposed on a Psychotic Disorder) Start Over

Has ever had a Hypomanic Episode and at least one Major Depressive Episode Yes No

Bipolar II Disorder Start Over

2+ years of hypomanic symptoms and periods of depressed mood Yes No

Cyclothymic Disorder Start Over

Clinically significant manic/hypomanic symptoms that do not meet criteria for a specific Bipolar Disorder Yes No

Bipolar Disorder NOS Start Over

Has ever had a Major Depressive Episode Yes No

Psychotic symptoms occur at times other than during Major Depressive Episodes Yes No

Major Depressive Disorder Start Over

Schizoaffective Disorder, Depressive Type Start Over

Depressive Disorder NOS (superimposed on Psychotic Disorder) Start Over

Depressed mood, more days than not, for at least 2 years with associated symptoms Yes No

Depressed mood not meeting criteria for one of the previous Mood Disorders that develops in response to a stressor Yes No

Adjustment Disorder with Depressed Mood Start Over

Clinically significant depressive symptoms that do not meet criteria for a specific Mood Disorder Yes No

Depressive Disorder NOS Start Over

Symptoms of anxiety, fear, avoidance, or increased arousal Due to the direct physiological effects of a general medical condition Yes No

Anxiety disorder due to a general medical condition Start Over

Due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication, a toxin) Yes No

Substance-Induced Anxiety Disorder Start Over

Recurrent unexpected Panic Attacks plus a month of worry, concern about attacks, or change in behavior Yes No

Agoraphobia, i.e., anxiety about being in places from which escape might be difficult or embarrassing in the event of having a Panic Attack Yes No

Panic Disorder with Agoraphobia Start Over

Panic Disorder Without Agoraphobia Start Over

Agoraphobia, i.e., anxiety about being in places from which escape might be difficult or embarrassing in the event of having panic-like symptoms Yes No

Agoraphobia without History of Panic Disorder Start Over

Anxiety concerning separation from attachment figures with onset in childhood Yes No

Separation Anxiety Disorder Start Over

Fear of humiliation or embarrassment in social or performance Yes No

Social Phobia (Social Anxiety Disorder) Start Over

Fear cued by object or situation Yes No

Obsessions or compulsions Yes No

Obsessive-Compulsive Disorder Start Over

6-month period of excessive anxiety and worry plus anxiety symptoms Yes No

Occurs exclusively during a Mood or Psychotic Disorder See mood disorders tree No

Generalized Anxiety Disorder Start Over

Anxiety in response to a severe traumatic event Yes No

Reexperiencing of event, increased arousal, and avoidance of stimuli associated with traumatic event Yes No

Duration of more than 1 month Yes No

No Anxiety Disorder (symptoms of fear, anxiety, or avoidance that are not clinically significant) Start Over

Posttraumatic Stress Disorder Start Over

Acute Stress Disorder Start Over

Anxiety that does not meet criteria for one of the above Anxiety Disorders and develops in response to a stressor Yes No

Adjustment Disorder with Anxiety Start Over

Clinically significant symptoms that do not meet criteria for a specific Anxiety Disorder Yes No

Anxiety Disorder NOS Start Over

Physical Complaints or irrational anxiety about illness or appearance Physical complaints are fully explained by a general medical condition and complaints are not in excess of expected Yes No

Specific General Medical Condition (no somatoform disorder) Next

Psychological factors adversely affect general medical condition Next

Psychological Factor Affecting Medical Condition Start Over

Physical symptoms are intentionally produced Yes No

External incentives are absent Yes No

Factitious Disorder Start Over

History of multiple physical complaints with at least 4 pain symptoms, 2 gastrointestinal symptoms, 1 sexual symptom, and 1 pseudoneurological symptom Yes No

Somatization Disorder Start Over

Symptom or deficit affecting voluntary motor or sensory function Yes No

Conversion Disorder Start Over

Symptom or deficit affecting sexual functioning Yes No

Pain is focus of clinical attention, and psychological factors have important role Yes No

Other physical complaints lasting at least 6 months Yes No

Undifferentiated Somatoform Disorder Start Over

Preoccupation with idea of having a serious disease Yes No

Belief is of delusional intensity Yes No

See Psychotic Disorders tree Start Over

Preoccupation with imagined defect in appearance Yes No

Body Dysmorphic Disorder (if delusional, also see Psychotic Disorders tree ) Start Over

Clinically significant somatoform symptoms that do not meet criteria for a specific Somatoform Disorder Yes No

Somatoform Disorder NOS Start Over

No Somatoform Disorder (somatoform symptoms that are not clinically significant) Start Over

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