ICD-10-CM Codes
F01-F99
F01-F09
F02-
2023 ICD-10-CM Diagnosis Code F02.C18

2023 ICD-10-CM Diagnosis Code F02.C18

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

2023 - New Code

Billable/Specific Code

Manifestation Code

F02.C18 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Short description: Dem in other dis classd elswhr, sev, with other beh distrb
ICD-10-CM F02.C18 is a new 2023 ICD-10-CM code that became effective on October 1, 2022.
This is the American ICD-10-CM version of F02.C18 - other international versions of ICD-10 F02.C18 may differ.

ICD-10-CM Coding Rules

F02.C18 describes the manifestation of an underlying disease, not the disease itself.

Applicable To

Dementia in other diseases classified elsewhere, severe, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
Major neurocognitive disorder in other diseases classified elsewhere, severe, 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 dementia in conditions classified elsewhere (
ICD-10-CM Diagnosis Code Z91.83
Wandering in diseases classified elsewhere
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 F02.C18 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 F02.C18:

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
F02
ICD-10-CM Diagnosis Code F02
Dementia in other diseases classified elsewhere
Code First
- the underlying physiological condition, such as:
- Alzheimer's (G30.-)
- cerebral lipidosis (E75.4)
- Creutzfeldt-Jakob disease (A81.0-)
- dementia with Lewy bodies (G31.83)
- dementia with Parkinsonism (G31.83)
- epilepsy and recurrent seizures (G40.-)
- frontotemporal dementia (G31.09)
- hepatolenticular degeneration (E83.0)
- human immunodeficiency virus [HIV] disease (B20)
- Huntington's disease (G10)
- hypercalcemia (E83.52)
- hypothyroidism, acquired (E00-E03.-)
- intoxications (T36-T65)
- Jakob-Creutzfeldt disease (A81.0-)
- multiple sclerosis (G35)
- neurosyphilis (A52.17)
- niacin deficiency [pellagra] (E52)
- Parkinson's disease (G20)
- Pick's disease (G31.01)
- polyarteritis nodosa (M30.0)
- prion disease (A81.9)
- systemic lupus erythematosus (M32.-)
- traumatic brain injury (S06.-)
- trypanosomiasis (B56.-, B57.-)
- vitamin B deficiency (E53.8)
Includes
- Major neurocognitive disorder in other diseases classified elsewhere
Type 1 Excludes
- mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)
Type 2 Excludes
- dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)
- vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-)
Dementia in other diseases classified elsewhere

ICD-10-CM F02.C18 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 F02.C18:

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
Applicable To
Dementia NOS
- in (due to)
  - diseases specified elsewhere (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) F02.80
    ICD-10-CM Diagnosis Code F02.80
    Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
    2016 2017 2018 2019 2020 2021 2022 2023 - Revised Code Billable/Specific Code Manifestation Code
    Applicable To
    Dementia in other diseases classified elsewhere NOS
    Major neurocognitive disorder in other diseases classified elsewhere NOS
    - severe F02.C0
      ICD-10-CM Diagnosis Code F02.C0
      Dementia in other diseases classified elsewhere, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
      2023 - New Code Billable/Specific Code Manifestation Code
      Applicable To
      Dementia in other diseases classified elsewhere, severe, NOS
      Major neurocognitive disorder in other diseases classified elsewhere, severe, NOS
      - with
        behavioral disturbances (sexual disinhibition) (sleep disturbance) (social disinhibition) F02.C18
        specified NEC F02.C18

ICD-10-CM Codes Adjacent To F02.C18

F02.B1 Dementia in other diseases classified elsewhere, moderate, with behavioral disturbance

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 …… with psychotic disturbance

F02.B3 …… with mood disturbance

F02.B4 …… with anxiety

F02.C Dementia in other diseases classified elsewhere, severe

F02.C0 …… without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

F02.C1 Dementia in other diseases classified elsewhere, severe, with behavioral disturbance

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 …… with psychotic disturbance

F02.C3 …… with mood disturbance

F02.C4 …… with anxiety

F03 Unspecified dementia

F03.9 Unspecified dementia, unspecified severity

F03.90 …… without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

F03.91 Unspecified dementia, unspecified severity, with behavioral disturbance

F03.911 Unspecified dementia, unspecified severity, with agitation

F03.918 Unspecified dementia, unspecified severity, with other behavioral disturbance

F03.92 …… with psychotic disturbance

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

2023 ICD-10-CM Diagnosis Code F02.C18

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

Wandering in diseases classified elsewhere

Mental, Behavioral and Neurodevelopmental disorders

Mental disorders due to known physiological conditions

Dementia in other diseases classified elsewhere

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

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

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