Unspecified dementia (F03) ICD-10-CM
The F03 code range covers unspecified dementia with 33 ICD-10-CM diagnosis codes. 24 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- 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 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the F03 Range 33 codes · 24 billable
- F03 Unspecified dementiaNon-billable
- F03.9 Unspecified dementia, unspecified severityNon-billable
- F03.90 Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- F03.91 Unspecified dementia, unspecified severity, with behavioral disturbanceNon-billable
- F03.911 Unspecified dementia, unspecified severity, with agitation
- F03.918 Unspecified dementia, unspecified severity, with other behavioral disturbance
- F03.92 Unspecified dementia, unspecified severity, with psychotic disturbance
- F03.93 Unspecified dementia, unspecified severity, with mood disturbance
- F03.94 Unspecified dementia, unspecified severity, with anxiety
- F03.A Unspecified dementia, mildNon-billable
- F03.A0 Unspecified dementia, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- F03.A1 Unspecified dementia, mild, with behavioral disturbanceNon-billable
- F03.A11 Unspecified dementia, mild, with agitation
- F03.A18 Unspecified dementia, mild, with other behavioral disturbance
- F03.A2 Unspecified dementia, mild, with psychotic disturbance
- F03.A3 Unspecified dementia, mild, with mood disturbance
- F03.A4 Unspecified dementia, mild, with anxiety
- F03.B Unspecified dementia, moderateNon-billable
- F03.B0 Unspecified dementia, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- F03.B1 Unspecified dementia, moderate, with behavioral disturbanceNon-billable
- F03.B11 Unspecified dementia, moderate, with agitation
- F03.B18 Unspecified dementia, moderate, with other behavioral disturbance
- F03.B2 Unspecified dementia, moderate, with psychotic disturbance
- F03.B3 Unspecified dementia, moderate, with mood disturbance
- F03.B4 Unspecified dementia, moderate, with anxiety
- F03.C Unspecified dementia, severeNon-billable
- F03.C0 Unspecified dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- F03.C1 Unspecified dementia, severe, with behavioral disturbanceNon-billable
- F03.C11 Unspecified dementia, severe, with agitation
- F03.C18 Unspecified dementia, severe, with other behavioral disturbance
- F03.C2 Unspecified dementia, severe, with psychotic disturbance
- F03.C3 Unspecified dementia, severe, with mood disturbance
- F03.C4 Unspecified dementia, severe, with anxiety
About the F03 Code Range
This category describes dementia without naming a specific type. It sits within mental disorders due to known physiological conditions.
The subdivisions first separate unspecified severity, F03.9, from mild, F03.A, moderate, F03.B, and severe dementia, F03.C. Within each severity level, codes distinguish the absence of listed disturbances from behavioral disturbance, psychotic disturbance, mood disturbance, or anxiety. Behavioral disturbance splits further into agitation and other behavioral disturbance.
Questions About This Page
How many billable codes are in the F03 range?
Of the 33 codes in this range, 24 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the F03 range classify?
The range classifies unspecified dementia. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
