A) Disturbance of consciousness (reduced clarity of awareness of the environment) with reduced ability to focus, sustain, or shift attention.

B) A change in cognition (such as memory deficit, disorientation, language disturbance) or the development of a perceptual disturbance that is not better accounted for by a preexisting, established, or evolving dementia.

C) The disturbance develops over a short period of time (usually hours to days) and tends to fluctuate during the course of the day.

D) There is evidence from the history, physical examination, or laboratory findings that the disturbance is caused by the direct physiological consequences of a general medical condition.

A) Disturbance of consciousness (reduced clarity of awareness of the environment) with reduced ability to focus, sustain, or shift attention.

B) A change in cognition (such as memory deficit, disorientation, language disturbance) or the development of a perceptual disturbance that is not better accounted for by a preexisting, established, or evolving dementia.

C) The disturbance develops over a short period of time (usually hours to days) and tends to fluctuate during the course of the day.

D) There is evidence from the history, physical examination, or laboratory findings of either (1) or (2):

1 - the symptoms in Criteria A and B developed during Substance Intoxication
2 - medication use is etiologically related to the disturbance

Note: This diagnosis should be made instead of a diagnosis of Substance Intoxication only when the cognitive symptoms are in excess of those usually associated with the intoxication syndrome and when the symptoms are sufficiently severe to warrant independent clinical attention. 

A) Disturbance of consciousness (reduced clarity of awareness of the environment) with reduced ability to focus, sustain, or shift attention.

B) A change in cognition (such as memory deficit, disorientation, language disturbance) or the development of a perceptual disturbance that is not better accounted for by a preexisting, established, or eveolving dementia.

C) The disturbance develops over a short period of time (usually hours to days) and tends to fluctuate during the course of the day.

D) There is evidence from the history, physical examination, or laboratory findings that the symptoms in Criteria A and B developed during, or shortly after, a withdrawal syndrome.

Note:  This diagnosis should be made instead of a diagnosis of Substance Withdrawal only when the cognitive symptoms are in excess of those usually associated with the withdrawal syndrome and when the symptoms are sufficiently severe to warrant independent clinical attention.

A) Disturbance of consciousness (reduced clarity of awareness of the environment) with reduced ability to focus, sustain, or shift attention.

B) A change in cognition (such as memory deficit, disorientation, language disturbance) or the development of a perceptual disturbance that is not better accounted for by a preexisting, established, or evolving dementia.

C) The disturbance develops over a short period of time (usually hours to days) and tends to fluctuate during the course of the day.

D) There is evidence from the history, physical examination, or laboratory findings that the delirium has more than one etiology (more than one etiological general medical condition, a general medical condition plus Substance Intoxication or medication side effect). 

Examples include:

1 - A clinical presentation of delirium that is suspected to be due to a general medical condition or substance use but for which there is insufficient evidence to establish a specific etiology

2 - Delirium due to causes not listed in this section (sensory deprivation) 

A) The development of multiple cognitive deficits manifested by both

1 - memory impairment (impaired ability to learn new information or to recall previously learned information)
2 - one (or more) of the following cognitive disturbances:
a - aphasia (language disturbance)
b - apraxia (impaired ability to carry out motor activities despite intact motor function
c - agnosia (faiure to recognize or identify objects despite intact sensory function
d - disturbance in executive functioning (planning, organizing, sequencing, abstracting)

B) The cognitive deficits in Criteria A1 and A2 each cause significant impairment in social or occupational functioning and represent a significant decline from a previous level of functioning.

C) The course is characterized by gradual onset and continuing cognitive decline.

D) The cognitive deficits in Criteria A1 and A2 are not due to any of the following:

1 - other central nervous system conditions that cause progressive deficits in memory and cognition
2 - systemic conditions that are known to cause dementia
3 - substance-induced conditions

E) The deficits do not occur exclusively during the course of a delirium.

F) The disturbance is not better accounted ofr by another Axis I disorder (Major Depressive Disorder, Schizophrenia). 

A) The predominant disturbance is one or more episodes of inability to recall important personal information, usually of a traumatic or stressful nature, that is too extensive to be explained by ordinary forgetfulness.

B) The disturbance does not occur exclusively during the course of Dissociative Identity Disorder, Dissociative Fugue, PTSD, Acute Stress Disorder, or Somatization Disorder and is not due to the direct physiological effects of a substance or a neurological or other general medical condition.

C) The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. 

A) The predominant disturbance is sudden, unexpected travel away from home or one's customary place of work, with inability to recall one's past. 

B) Confusion about personal identity or assumption of a new identity (partial or complete).

C) The disturbance does not occur exclusively during the course of Dissociative Identity Disorder and is not due to the direct physiological effects of a substance or a general medical condition.

D) The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.

A) The presence of two or more distinct identities or personality states (each with its own relatively enduring pattern or perceiving, relating to, and thinking about the environment and self).

B) At least two of these identities or personality states recurrently take control of the person's behavior.

C) Inability to recall important personal information that is too extensive to be explained by ordinary forgetfulness.

D) The disturbance is not due to the direct physiological effects of a substance or a general medical condition.  

Note: In children, the symptoms are not attributable to imaginary playmates or other fantasy play. 

A) Persistent or recurrent experiences of feeling detached from, and as if one is an outside observer of, one's mental processes or body (feeling like one is in a dream).

B) During the depersonalization experience, reality testing remains intact.

C) The depersonalization causes clinically significant distress or impairment in social, occupational, or other important areas of functioning.

D) The depersonalization experience des not occur exclusively during the course of another mental disorder, such as Schizophrenia, Panic Disorder, Acute Stress Disorder, or another Dissociative Disorder, and is not due to the direct physiological effects of a substance or a general medical condition.