ICD-9 Diagnosis Code 300.12

Dissociative amnesia

Diagnosis Code 300.12

ICD-9: 300.12
Short Description: Dissociative amnesia
Long Description: Dissociative amnesia
This is the 2014 version of the ICD-9-CM diagnosis code 300.12

Code Classification
  • Mental disorders
    • Neurotic disorders, personality disorders, and other nonpsychotic mental disorders (300-316)
      • 300 Neurotic disorders

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • F44.0 - Dissociative amnesia

Index of Diseases and Injuries
References found for the code 300.12 in the Index of Diseases and Injuries:

    • Amnesia (retrograde) 780.93
      • dissociative 300.12
      • hysterical or dissociative type 300.12
      • psychogenic 300.12
    • Jacquet's dermatitis (diaper dermatitis) 691.0

Information for Patients


Your mind works a lot like a computer. Your brain puts information it judges to be important into "files." When you remember something, you pull up a file. Memory doesn't always work perfectly. As people grow older, it may take longer to retrieve those files. Some adults joke about having a "senior moment."

It's normal to forget things once in awhile. We've all forgotten a name, where we put our keys, or if we locked the front door. Seniors who forget things more often than others their age may have mild cognitive impairment. Forgetting how to use the telephone or find your way home may be signs of a more serious problem. These include Alzheimer's disease or other types of dementia, stroke, depression, head injuries, thyroid problems, or reactions to certain medicines. If you're worried about your forgetfulness, see your doctor.

NIH: National Institute on Aging

  • Memory loss
  • Mental status testing
  • Remembering tips

[Read More]

Mental Disorders

Also called: Mental illness

Mental disorders include a wide range of problems, including

  • Anxiety disorders, including panic disorder, obsessive-compulsive disorder, post-traumatic stress disorder, and phobias
  • Bipolar disorder
  • Depression
  • Mood disorders
  • Personality disorders
  • Psychotic disorders, including schizophrenia

There are many causes of mental disorders. Your genes and family history may play a role. Your life experiences, such as stress or a history of abuse, may also matter. Biological factors can also be part of the cause. A traumatic brain injury can lead to a mental disorder. A mother's exposure to viruses or toxic chemicals while pregnant may play a part. Other factors may increase your risk, such as use of illegal drugs or having a serious medical condition like cancer.

Medications and counseling can help many mental disorders.

  • Adjustment disorder
  • Conversion disorder
  • Hypochondria
  • Somatization disorder
  • Somatoform pain disorder

[Read More]
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