F03.C
⚠ Non-billable (Header)Unspecified dementia, severe
Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
inherited from F03Rules from parent category F03: Unspecified dementia
- • dementia with delirium or acute confusional state (F05)
- • mild memory disturbance due to known physiological condition (F06.8)
Child Codes (5)
F03.C0Unspecified dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxietyF03.C1Unspecified dementia, severe, with behavioral disturbanceF03.C2Unspecified dementia, severe, with psychotic disturbanceF03.C3Unspecified dementia, severe, with mood disturbanceF03.C4Unspecified dementia, severe, with anxiety
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CodeF03.C
BillableNo — Header code
ParentF03
CategoryMental, Behavioral and Neurodevelopmental disorders (F01-F99)
Excludes10 rule(s)
Excludes22 note(s)
Child codes5
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)