2023 ICD-10-CM Diagnosis Code F03.B18

New Call-to-action

Unspecified dementia, moderate, with other behavioral disturbance

    2023 - New Code Billable/Specific Code Adult Dx (15-124 years)
  • F03.B18 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Unsp dementia, moderate, with other behavioral disturb
  • ICD-10-CM F03.B18 is a new 2023 ICD-10-CM code that became effective on October 1, 2022.
  • This is the American ICD-10-CM version of F03.B18 - other international versions of ICD-10 F03.B18 may differ.
ICD-10-CM Coding Rules
  • F03.B18 is applicable to adult patients aged 15 - 124 years inclusive.
Applicable To
  • Unspecified dementia, moderate, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code, if applicable, to identify wandering in unspecified dementia (
    ICD-10-CM Diagnosis Code Z91.83

    Wandering in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt Manifestation Code
    Code First
    • underlying disorder such as:
    • Alzheimer's disease (G30.-)
    • autism or pervasive developmental disorder (F84.-)
    • intellectual disabilities (F70-F79)
    • unspecified dementia with behavioral disturbance (F03.9-, F03.A-, F03.B-, F03.C-)
    Z91.83
    )
The following code(s) above F03.B18 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to F03.B18:
  • F01-F99
    2023 ICD-10-CM Range F01-F99

    Mental, Behavioral and Neurodevelopmental disorders

    Includes
    • disorders of psychological development
    Type 2 Excludes
    • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
    Mental, Behavioral and Neurodevelopmental disorders
  • F01-F09
    2023 ICD-10-CM Range F01-F09

    Mental disorders due to known physiological conditions

    Note
    • This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.
    Mental disorders due to known physiological conditions
  • F03
    ICD-10-CM Diagnosis Code F03

    Unspecified dementia

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    • Major neurocognitive disorder NOS
    • Presenile dementia NOS
    • Presenile psychosis NOS
    • Primary degenerative dementia NOS
    • Senile dementia NOS
    • Senile dementia depressed or paranoid type
    • Senile psychosis NOS
    Type 1 Excludes
    Type 2 Excludes
    • mild memory disturbance due to known physiological condition (F06.8)
    • senile dementia with delirium or acute confusional state (F05)
    Unspecified dementia
ICD-10-CM F03.B18 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 884 Organic disturbances and intellectual disability
Code History
  • 2023 (effective 10/1/2022): New code

Diagnosis Index entries containing back-references to F03.B18:
  • Dementia (degenerative (primary)) (old age) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) F03.90
    ICD-10-CM Diagnosis Code F03.90

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

      2016 2017 2018 2019 2020 2021 2022 2023 - Revised Code Billable/Specific Code Adult Dx (15-124 years)
    Applicable To
    • Dementia NOS
    • moderate F03.B0
      ICD-10-CM Diagnosis Code F03.B0

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

        2023 - New Code Billable/Specific Code Adult Dx (15-124 years)
      Applicable To
      • Dementia, moderate, NOS

ICD-10-CM Codes Adjacent To F03.B18
F03.A1 Unspecified dementia, mild, with behavioral disturbance
F03.A11 Unspecified dementia, mild, with agitation
F03.A18 Unspecified dementia, mild, with other behavioral disturbance
F03.A2 …… with psychotic disturbance
F03.A3 …… with mood disturbance
F03.A4 …… with anxiety
F03.B Unspecified dementia, moderate
F03.B0 …… without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
F03.B1 Unspecified dementia, moderate, with behavioral disturbance
F03.B11 Unspecified dementia, moderate, with agitation
F03.B18 Unspecified dementia, moderate, with other behavioral disturbance
F03.B2 …… with psychotic disturbance
F03.B3 …… with mood disturbance
F03.B4 …… with anxiety
F03.C Unspecified dementia, severe
F03.C0 …… without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
F03.C1 Unspecified dementia, severe, with behavioral disturbance
F03.C11 Unspecified dementia, severe, with agitation
F03.C18 Unspecified dementia, severe, with other behavioral disturbance
F03.C2 …… with psychotic disturbance
F03.C3 …… with mood disturbance

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.