Criterion A. An inability to recall important autobiographical information, usually of a traumatic or stressful nature, that is inconsistent with ordinary forgetting. Note: Dissociative amnesia most often consists of localized or selective amnesia for a specific event or events; or generalized amnesia for identity and life history.

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

Criterion C. The disturbance is not attributable to the physiological effects of a substance or a neurological or other medical condition (e.g. partial complex seizures, transient global amnesia, sequelae of a closed head injury/traumatic brain injury, other neurological condition).

Criterion D. The disturbance is not better explained by dissociative identity disorder, posttraumatic stress disorder, acute stress disorder, somatic symptom disorder, or major or mild neurocognitive disorder.

Specifiers:

• With dissociative fugue
  • Apparently purposeful travel or bewildered wandering that is associated with amnesia for identity or for other important autobiographical information.

Types:

• Localized: failure to recall events during a specific period of time
  • Most common
• Selective: ability to recall some, but not all, of the events during a specific period of time
• Generalized: complete loss of memory for one's life history
  • May forget one's own personal identity
  • May lose previous knowledge about the world and no longer access well-learned skills
  • Rare
• Systematized: loss of memory for specific categories of information
• Continuous: loss of memory for each new event as it occurs