Chapter 5

F01–F99: Mental, Behavioral and Neurodevelopmental Disorders

Mental, Behavioral and Neurodevelopmental Disorders diagnostic classification updated for 2026.

Chapter Instructions

Includes
  • disorders of psychological development
Excludes2(Not included here)
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Internal Codes
  • F01.50

    Vascular dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F01.511

    Vascular dementia, unspecified severity, with agitation

  • F01.518

    Vascular dementia, unspecified severity, with other behavioral disturbance

  • F01.52

    Vascular dementia, unspecified severity, with psychotic disturbance

  • F01.53

    Vascular dementia, unspecified severity, with mood disturbance

  • F01.54

    Vascular dementia, unspecified severity, with anxiety

  • F01.A0

    Vascular dementia, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F01.A11

    Vascular dementia, mild, with agitation

  • F01.A18

    Vascular dementia, mild, with other behavioral disturbance

  • F01.A2

    Vascular dementia, mild, with psychotic disturbance

  • F01.A3

    Vascular dementia, mild, with mood disturbance

  • F01.A4

    Vascular dementia, mild, with anxiety

  • F01.B0

    Vascular dementia, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F01.B11

    Vascular dementia, moderate, with agitation

  • F01.B18

    Vascular dementia, moderate, with other behavioral disturbance

  • F01.B2

    Vascular dementia, moderate, with psychotic disturbance

  • F01.B3

    Vascular dementia, moderate, with mood disturbance

  • F01.B4

    Vascular dementia, moderate, with anxiety

  • F01.C0

    Vascular dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F01.C11

    Vascular dementia, severe, with agitation

  • F01.C18

    Vascular dementia, severe, with other behavioral disturbance

  • F01.C2

    Vascular dementia, severe, with psychotic disturbance

  • F01.C3

    Vascular dementia, severe, with mood disturbance

  • F01.C4

    Vascular dementia, severe, with anxiety

  • F02.80

    Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F02.811

    Dementia in other diseases classified elsewhere, unspecified severity, with agitation

  • F02.818

    Dementia in other diseases classified elsewhere, unspecified severity, with other behavioral disturbance

  • F02.82

    Dementia in other diseases classified elsewhere, unspecified severity, with psychotic disturbance

  • F02.83

    Dementia in other diseases classified elsewhere, unspecified severity, with mood disturbance

  • F02.84

    Dementia in other diseases classified elsewhere, unspecified severity, with anxiety

  • F02.A0

    Dementia in other diseases classified elsewhere, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F02.A11

    Dementia in other diseases classified elsewhere, mild, with agitation

  • F02.A18

    Dementia in other diseases classified elsewhere, mild, with other behavioral disturbance

  • F02.A2

    Dementia in other diseases classified elsewhere, mild, with psychotic disturbance

  • F02.A3

    Dementia in other diseases classified elsewhere, mild, with mood disturbance

  • F02.A4

    Dementia in other diseases classified elsewhere, mild, with anxiety

  • F02.B0

    Dementia in other diseases classified elsewhere, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F02.B11

    Dementia in other diseases classified elsewhere, moderate, with agitation

  • F02.B18

    Dementia in other diseases classified elsewhere, moderate, with other behavioral disturbance

  • F02.B2

    Dementia in other diseases classified elsewhere, moderate, with psychotic disturbance

  • F02.B3

    Dementia in other diseases classified elsewhere, moderate, with mood disturbance

  • F02.B4

    Dementia in other diseases classified elsewhere, moderate, with anxiety

  • F02.C0

    Dementia in other diseases classified elsewhere, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F02.C11

    Dementia in other diseases classified elsewhere, severe, with agitation

  • F02.C18

    Dementia in other diseases classified elsewhere, severe, with other behavioral disturbance

  • F02.C2

    Dementia in other diseases classified elsewhere, severe, with psychotic disturbance

  • F02.C3

    Dementia in other diseases classified elsewhere, severe, with mood disturbance

  • F02.C4

    Dementia in other diseases classified elsewhere, severe, with anxiety

  • F03.90

    Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F03.911

    Unspecified dementia, unspecified severity, with agitation

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