ICD-10 Diagnosis Code F03.91

Unspecified dementia with behavioral disturbance

Diagnosis Code F03.91

ICD-10: F03.91
Short Description: Unspecified dementia with behavioral disturbance
Long Description: Unspecified dementia with behavioral disturbance
This is the 2017 version of the ICD-10-CM diagnosis code F03.91

Code Classification
  • Mental and behavioural disorders
    • Mental disorders due to known physiological conditions (F01-F09)
      • Unspecified dementia (F03)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Adult diagnoses Additional informationCallout TooltipAdult diagnoses
Adult. Age range is 15–124 years inclusive (e.g., senile delirium, mature cataract).

Convert to ICD-9 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.
  • 294.21 - Demen NOS w behav distrb

  • Altered behavior in Alzheimer's disease
  • Dementia with behavioral disturbance
  • Post-traumatic dementia
  • Post-traumatic dementia with behavioral change
  • Senile dementia with delusion
  • Senile dementia with depression
  • Senile dementia with depressive or paranoid features
  • Senile dementia with paranoia
  • Senile dementia with psychosis

Index of Diseases and Injuries
References found for the code F03.91 in the Index of Diseases and Injuries:

Information for Patients


Also called: Senility

Dementia is the name for a group of symptoms caused by disorders that affect the brain. It is not a specific disease. People with dementia may not be able to think well enough to do normal activities, such as getting dressed or eating. They may lose their ability to solve problems or control their emotions. Their personalities may change. They may become agitated or see things that are not there.

Memory loss is a common symptom of dementia. However, memory loss by itself does not mean you have dementia. People with dementia have serious problems with two or more brain functions, such as memory and language. Although dementia is common in very elderly people, it is not part of normal aging.

Many different diseases can cause dementia, including Alzheimer's disease and stroke. Drugs are available to treat some of these diseases. While these drugs cannot cure dementia or repair brain damage, they may improve symptoms or slow down the disease.

NIH: National Institute of Neurological Disorders and Stroke

  • Dementia
  • Dementia - behavior and sleep problems
  • Dementia - daily care
  • Dementia - keeping safe in the home
  • Dementia and driving
  • Dementia due to metabolic causes
  • Mental status testing

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